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Pharmaceutical Calculations
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How many milliliter of U-100 insulin should be used to obtain 50units of insulin?
a. 5ml
b. 50mL
c. 0.5mL
d.500mL
c. 0.5mL
How many drops would be prescribed in each dose of a liquid medicine if 20mL contained 60 doses? The dropper calibrates 35gtts per mL.
a. 12gtts
b.15gtts
c. 8gtts
d. 23gtts
a. 12gtts
How many milligrams of a drug will be needed to prepare 74 dosage forms if each is to contain 1/10 grain?
a. 58mg
b. 480mg
c. 4800mg
d. 4.8mg
b. 480mg
If a pint of a certain liquid weights 9200 grains, what is the specific gravity of the liquid?
a. 1.0
b. 1.32
c. 1.276
d. 1.26
d. 1.26
How many grams of dextrose are required to prepare 4500 L of a 5% solution?
a. 80,000 g
b. 225,000 g
c. 4 f3
d. 8 f3
b. 225,000 g
How many grams of drug substance should be dissolved in 250 mL of water to make a 5%(w/w) solution?
a. 9.6g
b.13.16g
c.60 g
d. 10g
b.13.16g
Convert 5% to mg/mL
a. 50mg/mL
b.500mg/mL
c.5000mg/mL
d. 5mg/mL
a. 50mg/mL
In what proportion should alcohols of 90% and 50% strengths should be mixed to make 70% alcohol?
a. 3parts/5parts
b.1part/1part
c.5parts/4parts
d.4parts/5parts
b.1part/1part
How many milliliters of two liquids with specific gravities of 0.950 and 0.875 should be used to prepare 1500mL of a liquid having a specific gravity of 0.925?
a.1000mL (sp.gr 0.950) 500mL (sp gr 0.875)
b.2250mL (sp.gr 0.950) 1125mL (sp gr 0.875)
c.500mL (sp.gr 0.950) 1000mL(sp gr 0.875)
d. 1125mL (sp.gr 0.950) 2250mL(sp gr 0.875)
a.1000mL (sp.gr 0.950) 500mL (sp gr 0.875)
Zinc chloride is a three-ion electrolyte,dissociating 80% in a certain concentration. Calculate its dissociation factor(I)
a. 2.6
b. 1.6
c. 2.9
d. 3
a. 2.6
If 10mg of a drug are added to a 500mL large-volume parenteral fluid, what should be the rate of flow, in mL/hr, to deliver 1mg of drug per hour?
a. 50mL/hr
b. 20mL/hr
c.500mL/hr
d.5mL/hr
a. 50mL/hr
You are directed to weigh 10g of substance so as to limit the error to 0.2%. calculate the maximum potential error, in terms of grams, that you would not be permitted to exceed.
a. 0.05g
b. 0.02g
c. 0.002g
d. 0.2g
b. 0.02g
How many milliequivalents are there in 15mL of a 50% MgSO4 solution? (mol wt= 246)
a. 6.097 mEq
b. 60.97 mEq
c. 6.96 mEq
d.69.7 mEq
b. 60.97 mEq
A prescription is to taken as follows: 1 tab q.i.d. the first day; 1 tab t.i.d. the second day; 1 tab b.i.d. x 5 d; and 1 tab q.d. thereafter. How many tablets should be dispensed to equal a 3-day supply?
a. 18 tab
b. 40 tab
c. 22 tab
d. 47 tab
b. 40 tab
Tetracycline has been shown to form a calcium complex in bone-forming tissue in infants given oral tetracycline in doses of 0.011g/lb body weight every 6 hrs. express the doses of milligrams per kilogram of body weight.
a. 5mg/kg
b.24.2mg/kg
c.25mg/kg
d. 11mg/kg
b.24.2mg/kg
How many cochicines tablets, each containing 00mcg, may be prepared from 30g of colchicines?
a. 50,000 tab
b.20,000 tab
c.20 tab
d.50 tab
a. 50,000 tab
Digitoxin is available for parenteral pediatric use in a concentration of 0.1mg/mL. how many milliliters would provide dose of 40 mcg?
a. 0.04mL
b. 40mL
c. 40mL
d. 0.4mL
d. 0.4mL
Nitrostat sublingual tablets are available as 1/200gr tablets. What is the approximate equivalent in milligrams?
a. 0.325
b. 0.077
c. 0.005
d. 0.65
a. 0.325
Four thousand nanograms equals 4:
a. centigrams
b. grams
c. milligrams
d. micrograms
d. micrograms
The prophylactic dose of riboflavin is 2mg. how many mcg of riboflavin are in a multiple vitamin capsule containing 1/5 the prophylactic dose?
a.500mcg
b.400mcg
c.5000mcg
d.200mcg
b.400mcg
If a physician prescribed 4g of aspirin to be taken by a patient daily, about how many 5-grain tablets should the patient take each day?
a. 10 tab
b. 12 tab
c.15 tab
d.8 tab
b. 12 tab
A commercial package contains thirty-six 200mg tablets of ibuprofen. How many kilograms of ibuprofen were used in the manufacture of 1000 package of the product?
a. 7.2 kg
b. 5kg
c. 7.8kg
d. 6.9 kg
a. 7.2 kg
How many grams of ethyl estradiol are needed to prepare 2,500 tablets, each containing 50mcg of the medicinal substance?
a. 1.25g
b.12.5g
c. 0.125g
d.125g
c. 0.125g
Pico denotes _______ of the basic unit
a. 10^-12
b. 10^-15
c.10^-18
d. 10^-10
a. 10^-12
1 milliliter is 1000x greater than:
a. microliter
b.picoliter
c.nanoliter
d.liter
a. microliter
Sudafed cough syrup contains 0.0g of dextromethorphan hydrobromide in each fluidounce. How many milligrams of this agent would be present in each teaspoonful dose?
a. 10mg
b. 12mg
c. 15mg
d. 20mg
c. 15mg
The usual dose of digoxin for rapid digitalization is a total of 1.0mg, divide into two or more portion at intervals of 6 to 8 hours. How many milliliters of digoxin elixir containing 50mcg/mL would provide this dose?
a. 15mL
b. 10mL
c.25mL
d.20mL
d.20mL
The dose of beclamethasone, an aerosolized inhalant, is 200mcg twice daily. The commercial inhaler delivers 50mcg per metered inhalation and contains 200 inhalations. How many inhalers should be dispensed to a patient if a 60-day supply is prescribed?
a. 3
b.2
c. 4
d.5
a. 3
If a physician prescribed Keflex, 250mg q.i.d. x 10 days, how many milliliters of keflex suspension containing 250mg per 5 mL should be dispensed?
a. 250mL
b.200mL
c. 150mL
d.100mL
b.200mL
Terpin hydrate and codeine elixir contains 60mg of codeine per 30mL. how much additional codeine should be added to 180mL of the elixir so that each teaspoonful will contain 15mg of codeine?
a. 180mg
b.200mg
c.170mg
d.190mg
a. 180mg
The directions intended for the patient on a prescription read 1tbsp a.c. and h.s. for 10days. What is the minimum volume the pharmacist should dispense?
a. 200mL
b. 150mL
c. 600mL
d. 450mL
c. 600mL
If the cost of human growth hormone is P40/mg q4h six times daily. How many will a 180lb patient receive daily?
a. 12mg
b. 164mg
c.650mg
d.980mg
a. 12mg
The pediatric dose of cefadroxil is 30mg/kg/day. If a child was given a daily dose of 2 teaspoonfuls of pediatric suspension containing 125mg of cefadroxil per 5mL, what was the weight, in pounds of the child?
a. 19lbs
b. 17.3lbs
c. 18.3lbs
d. 18.5lbs
c. 18.3lbs
An antacid tablet contains 80mg of dried aluminum hydroxide gel and 20g of magnesium trisilicate. How many kilograms of aluminum hydroxide gel are required to manufacture 250000 bottles of the product, each containing 100 tablets?
a.2000kg
b.20000kg
c.200kg
d.8000kg
a.2000kg
A ferrous sulfate syrup contains 220mg of FeSO4.7H2O per teaspoon dose. How many milligrams of elemental iron are present in the dose? (mol wt FeSO4.7H2O= 278; at wt of Fe=55.9, S=32.1, O=16, H=1.0)
a. 44mg
b. 50mg
c. 88mg
d. 100mg
a. 44mg
An estradiol transdermal system contains in each skin patch 4mg of estradiol and 0.3mL of alcohol. How many liters of alcohol would be required to manufacture a half-million patches?
a. 15L
b. 150L
c. 1500L
d. 300L
b. 150L
From the ff formula:
Benzyl benzoate 250mL
Triethanolamine 5mL
Purified water, to make 1000mL
Calculate the quantity of benzyl benzoate required to make 6fl.Oz of benzyl benzoate lotion
a.45mL
b. 40mL
c. 4.5mL
d. 25mL
a.45mL
If 10mL of a nitroglycerin injection (5mg of nitroglycerin per milliliter) are added to make a liter of intravenous fluid, what is the percentage (w/v) of nitroglycerin in the final product?
a. 0.025%
b. 0.05%
c. 0.005%
d. 0.0005%
c. 0.005%
If an intravenous dose of mannitol is 1.5% (w/v) sodium chloride solution can be made from 1 lb of sodium chloride?
a. 50,444 mL
b. 30,000 mL
c. 50, 400 mL
d. 1,000 mL
b. 30,000 mL
if a pharmacist dissolves the contents of 8 capsules, each containing 250mg of clindamycin hydrochloride, into a sufficient amount of lonex astringent to prepare 120mL of the solution, what is the percentage strength (w/v) of clindamycin hydrochloride in the prescription?
a. 1%
b. 1.5%
c. 1.67%
d. 2%
c. 1.67%
A formula for a mouth rinse contains 1/10% (w/v) of zinc chloride. How many grams of zinc chloride should be used in preparing 25 liters of the mouth rinse?
a. 35g
b. 30g
c.20g
d. 25g
d. 25g
Cocoa butter, which is solid at room temperature and melts at 34°C, has a specific gravity of 0.86. If a formula calls for 48mL of theobroma oil, what would be the corresponding weight of cocoa butter to use?
a. 40g
b. 55.81g
c. 50g
d. 41.3g
d. 41.3g
A sunscreen lotion contains 5g of methyl salicylate (sp gr 1.045) per 1000mL. how many milliliters of methyl salicylate should be used in preparing 1gallon of the lotion?
a. 189.25mL
b. 197.77mL
c. 181.10mL
d. 190mL
c. 181.10mL
If 150mL of polyethylene glycol 400 weighs 74.1g, what is its specific gravity?
a. 0.88
b. 0.494
c. 2.35
d. 1.3
b. 0.494
How many milliliters of resorcinol monoacetate should be used to prepare 1 pint of a 15% (v/v) lotion?
a. 71mL
b. 65 mL
c. 76 mL
d. 69 mL
a. 71mL
How many liters of a mouthwash can be prepared from 100mL of cinnamon flavor if its concentration is to be 0.5% (v/v)?
a. 10L
b. 20L
c. 15L
d. 18 L
b. 20L
One pound of a fungicidal ointment contains 9.08g of undecylenic acid. Calculate the percentage (w/w) of undecylenic acid in the ointment.
a. 1.81%
b. 1.5%
c. 2%
d. 2.5%
c. 2%
A vaginal foam contains 0.01% (w/v) of dienestrol. Express this concentration as a ration strength.
a. 1:100
b. 1:1,000
c. 1:1,000,000,000
d. 1:10,000
b. 1:1,000
A sample of white petrolatum contains 10mg of tocopherol per kilogram as a preservative. Express the amount of tocopherol as a ratio strength.
a. 1:100,000
b. 1:1,000
c. 1:1,000,000
d. 1:10,000
a. 1:100,000
Hepatitis B immune globulin is preserved with 1:10,000 w/v of thimerosal. If the dose of the injection is 0.06 mL/Kg of body weight, how many micrograms of thimerosal would be contained in the dose for a 150-lb patient?
a. 400mcg
b. 409mcg
c. 415 mcg
d. 450mcg
b. 409mcg
If a serum sample is determined to contain 270mg/dL of cholesterol, what is the concentration of cholesterol (mol wt 386) in terms of millimoles per liter?
a. 6.5mmol/L
b. 6.9mmol/L
c. 69.9mmol/L
d. 5.66mmol/L
b. 6.9mmol/L
What is the percent concentration of cholesterol in a patient's blood serum if the cholesterol level is determined to be 260mg %?
a. 2.6%
b. 26%
c. 0.26%
d. 0.026%
c. 0.26%
If 250mL of a 1:800 (v/v) solution are diluted to 1000mL, what will be the ration strength (v/v)
a. 1:320
b. 1:3000
c. 1:3200
d. 1:32000
c. 1:3200
A glucose meter shows that a patient's blood contains 125mg% of glucose. Express this value as mg/mL.
a. 1.25mg/mL
b. 12.5mg/mL
c. 125mg/mL
d. 0.125mg/mL
a. 1.25mg/mL
If 400mL of a 20% (w/v) solution are diluted to 2 Liters what will be the percentage strength w/v?
a. 8%
b. 4%
c.5%
d. 2%
b. 4%
How many milliliters of water must be added to 250mL of a 25% (w/v) stock solution of sodium chloride to prepare a 0.9% w/v sodium chloride solution?
a. 65100mL
b. 6600mL
c. 6694mL
d. 6490mL
c. 6694mL
How many milliliters of a syrup containing 85% w/v of sucrose should be mix with 150mL of a syrup containing 60% w/v of sucrose to make a syrup containing 80% (w/v) of sucrose?
a. 500mL
b. 550mL
c. 600mL
d. 650mL
c. 600mL
How many milliliters of 95% (w/w) sulfuric acid having a specific gravity of 1.820 should be used in preparing 2liters of 10% (w/v) sulfuric acid?
a. 110mL
b. 120mL
c. 114mL
d. 116mL
d. 116mL
How many grams of Zinc oxide should be added to 3400grams of a 10% zinc oxide ointment to prepare a product containing 15% of zinc oxide?
a. 150grams
b. 200grams
c. 250grams
d. 210 grams
b. 200grams
Four equal amounts of belladonna extract, containing 1.15%, 1.30%, 1.35%, and 1.20% of alkaloids respectively, were mixed. What was the percentage strength of the mixture?
a. 1.2%
b. 1.4%
c. 1.5%
d. 1.25%
d. 1.25%
How many grams of petrolatum (diluents) should be added to 925grams of zinc oxide paste to prepare an ointment containing 6% of coal tar?
a.59g
b. 60g
c. 50g
d. 55g
a.59g
How many milliliters of a 2% (w/v) solution of lidocaine hydrochloride should be used in preparing 500mL of a solution containing 4mg of lidocaine hydrochloride per milliliter of solution?
a. 100mL
b. 150mL
c.250mL
d.120mL
a. 100mL
How many milliliters of a 37% (w/v) concentrate of saline solution should be used in preparing 750mL of a solution such that 10 mL diluted to a liter will yield a 9% solution?
a. 225 mL
b. 156.5 mL
c. 67.5 mL
d. 182.4 mL
d. 182.4 mL
How many milliliters of a 23.5% (w/v) concentrate of sodium chloride solution should be used in preparing 650 mL of a stock solution such that 30 mL diluted to a liter will yield a 1:5000 solution?
a. 0.2 mL
b. 4.33 mL
c. 18.44 mL
d. 11.75 mL
c. 18.44 mL
A 35-mL aliquot was obtained from a mixture of 98% unknown solution. If half the sample is diluted to 100 mL, what is its final concentration?
a. 17.15%
b. 2.94%
c. 280.0%
d. 34.3%
a. 17.15%
Prepare 30% alcohol cooling sponge from 1 pint of 70% isopropyl rubbing alcohol using the whole bottle.
a. add 500 mL of distilled water to 1 pt of 70% alcohol
b. add 656.6 mL of distilled water to 1 pt of 70% alcohol
c. add 333.33 mL of distilled water to 1 pt of 70% alcohol
d. add 200 mL of distilled water to 1 pt of 70% alcohol
b. add 656.6 mL of distilled water to 1 pt of 70% alcohol
Rx
Procaine hydrochloride 1%
Sodium chloride q.s.
Sterile water for injection add 100.0
Make isoton. Sol.
Sig. for injection
How many grams of sodium chloride should be used in compounding the prescription? (NaCl equivalent of procaine HCl is 0.21)
a. 0.690 g
b. 0.5 g
c. 0.6 g
d. 0.65 g
a. 0.690 g
Calculate the sodium (Na) content, in terms of mEq, of 1 g of ampicillin sodium (C16H18N3NaO4S, mol wt 371)
a. 2.5 mEq
b. 2.8 mEq
c. 2.7 mEq
d. 3 mEq
c. 2.7 mEq
What is the concentration, in milligrams per milliliter, of a solution containing 5 mEq of potassium chloride (KCl) per milliliter?
a. 372.5 mg
b. 375 mg
c. 370 mg
d. 368.5 mg
a. 372.5 mg
Ammonium chloride (NH4Cl, mol wt 53.5) is to be used as a urinary acidifier with a dose of 150 mEq. How many 500 mg tablets should be administered?
a. 16 tablets
b. 20 tablets
c. 15 tablets
d. 13 tablets
a. 16 tablets
Give anti-diphtheria serum 6000 U by intramuscular 2injections to a patient. The patient stock is 10000 U/5mL vial. How many mL are you going to inject?
a. 3 mL
b. 5 mL
c. 2 mL
d. 1 mL
a. 3 mL
A physician places a patient on a daily dose of 60 units of u-80 units' insulin. How many ml should the patient inject each day?
a. 0.75
b. 1.33
c. 0.6
d. 0.5
a. 0.75
A jar of cleansing cream is sold for P7.50, thereby yielding a gross profit of 60% on the cost. What did it cost?
a. P5.00
b. P4.00
c. P4.69
d. P4.50
c. P4.69
A pharmacist buys 20,000 tablets for P4000.00 with discounts of 16% and 2%. At what price per 10 must the tablets be sold to yield a gross profit of 40% on the selling price?
a. P27.50
b. P25.50
c. P27.00
d. P28.00
a. P27.50
A prescription item costs a pharmacist P122.00. Using a markup of 25% on the cost plus a professional fee of P50.00, calculate the prescription price.
a. P200.00
b. P250.00
c. P215.00
d. P202.50
d. P202.50
A saturated solution of sodium chloride boils at 227.1 °F. What is its boiling point on the centigrade scale?
a. 100°C
b. 108.24°C
c. 105°C
d. 107°C
b. 108.24°C
A manufacturing pharmacist received a drawback of P1500 on the alcohol that was used during a certain period. If the drawback on alcohol is P12.50 per proof gallon, how many wine gallons of 95% alcohol were used during the period?
a. 63.2
b. 60
c. 58
d. 65
a. 63.2
160 proof strength alcohol is equivalent to:
a. 80%
b. 320%
c. 100%
d. all of the above
a. 80%
What is the solubility of anhydrous chemical if 100 g of a saturated aqeous solution leaves a residue of 25 g after evaporation?
a. 1:5
b. 1:4
c. 1:2
d. 1:3
d. 1:3
A formula for a dermatologic cream calls for a 15 g of an emulsifier blend consisting of Tween 20 and Span 40. If the required HLB is 11.70, how many grams of each emulsifier should be used in emulsifying the cream? (HLB of Tween 20 is 16.7 and Span 40 is 6.7)
a. 5 g Tween 20 and 10 g Span 40
b. 7.5 g Tween 20 and 7.5 g Span 40
c. 2.5 g Tween 20 and 12.5 g Span 40
d. none of the above
b. 7.5 g Tween 20 and 7.5 g Span 40
How many 1- fluid ounce bottles of lagundi syrup can be prepared from 5 gallons of syrup?
a. 740
b. 640
c. 639
d. 540
b. 640
A formula for cough syrup contains 1/8 grain of codeine phosphate per teaspoonful. How many grams of codeine phosphate should be used to prepare a quart of cough syrup?
a. 1.75 g
b. 1.54 g
c. 1.84 g
d. 2.54 g
b. 1.54 g
The inhalant dose of amyl nitrite is 0.18mL. Express the dose in minims.
a. 4m
b. 2m
c. 3m
d. 5m
c. 3m
A patient weighing 8lbs is prescribed 2mEq/kg/day of potassium chloride (mol wt 74.5). How many mg of potassium chloride will be administered to the patient per day?
a. 541.8
b. 538
c. 436.4
d. 648
a. 541.8
How many grams of sodium chloride (mol wt 58.5) should be used to prepare 1 gallon of an isotonic solution?
a. 24
b. 28
c. 32
d. 34.1
d. 34.1
A sterile solution of potassium chloride (mol wt 74.5) contains 2 mEq/mL. If a 20 mL ampoule of the solution is diluted to 1 liter, what is the percentage strength of the resulting solution?
a. 0.298
b. 0.124
c. 1.298
d. 0.3241
a. 0.298
How many milliliters of a 3% (w/v) solution of ammonium chloride (mol wt 53.5) should be administered intravenously to provide 50 mEq?
a. 99.2
b. 89.2
c. 69.2
d. 79.2
b. 89.2
An initial dose of not less than 150 units/kg of body weight has been recommended for open heart surgery. How many mL of an injection containing 5000 heparin units per mL should be administered to a 300 lb patient?
a. 4.1 mL
b. 4.1microliter
c. 5.1 mL
d. 5.1microliter
a. 4.1 mL
Acetazolamide sodium is available in 500mg vials to be reconstituted to 5 mL with sterile water for injection prior to use. The dose of the drug for children is 5 mg/kg of body weight. How many mL of the injection should be administered to a child weighing 25lbs?
a. 0.57 mL
b. 0.52 mL
c. 0.50 mL
d. 0.54 mL
a. 0.57 mL
Rx
Dextrose anhydrous 0.25%
Sodium chloride q.s.
Sterile water for injection ad 1000 mL
Label: Isotonic dextrose and saline solution
How many grams of sodium chloride should be used in preparing the solution? The sodium chloride equivalent of dextrose anhydrous is 0.18.
a. 4.7 g
b. 4.2 g
c. 4.5 g
d. 4.0 g
c. 4.5 g
Rx
Zinc sulfate 0.06
Boric acid q.s.
Purified water ad 30.0
Make isoton. Sol.
How many grams of boric acid should be used in compounding the prescription? The sodium chlorides equivalents of zinc sulfate and boric acid are 0.16 and 0.52, respectively.
a. 0.50 g
b. 0.45 g
c. 0.59 g
d. 0.30 g
a. 0.50 g
In using isoproterenol hydrochloride solution (1:5000 w/v), 1 mL of the solution is diluted to 10 mL of sodium chloride injection prior to IV administration. What is the percentage concentration of the diluted solution?
a. 0.001
b. 0.005
c. 0.002
d. 0.008
c. 0.002
How many grams of lactose should be added to 80 g belladonna extract assaying 2.5% (w/w) of alkaloids to reduce its strength to 1.4%?
a. 52.5
b. 62.8
c. 42.8
d. 60.2
b. 62.8
If 500 mL of mineral oil which has a specific gravity f 0.87, is used to prepare 2 pints of mineral oil emulsion, how many grams of the oil would be used to prepare 1 gallon of the emulsion?
a. 1740.4
b. 1430.4
c.1750.4
d. 1741.4
a. 1740.4
A perfume oil has a specific gravity of 0.960 and costs P776.25 per kg. How much would 5 fluidounces cost?
a. P110.15
b. P111.15
c. P109.15
d. P180.15
a. P110.15
If 800 g of a 5% coal tar ointment is mixed with 1200 g of a 10% coal tar ointment, what is the concentration of coal tar in the finished product?
a. 8%
b. 8.5%
c. 9%
d. 9.5%
a. 8%
How many mL of a 5% (w/v) solution of lidocaine hydrochloride should be used in preparing 500 mL of a solution containing 25 mg of lidocaine hydrochloride per mL solution?
a. 250 mL
b. 260 mL
c. 240 mL
d. 270 mL
a. 250 mL
In what proportion should 10% and 2% coal tar ointments be mixed to prepare a 5% ointment?
a. 3:7
b. 2:5
c. 3:5
d. 2:3
c. 3:5
How many g of isoflurophate are contained in 15 g of a 1:10,000 ophthalmic solution of isoflurophate in peanut oil?
a. 1.8 mg
b. 1.9 mg
c. 1.7 mg
d. 1.5 mg
d. 1.5 mg
The normal range of specific gravity of urine is about 1.003 to 1.030. Using 5 mL urine samples, what would be the difference in weight, in mg, between these extremes?
a. 145 mg
b. 135 mg
c. 136 mg
d. 155 mg
b. 135 mg
What is the single dose for a child weighing 53 lbs if the usual pediatric dose of cefazolin sodium is 25 mg/kg/day divided equally into 3 doses?
a. 200 mg
b. 210 mg
c. 200 g
d. 220 mg
a. 200 mg
The adult dose of a liquid medication is 0.1 mL/kg body weight to be administered as a single dose. How many teaspoonfuls should be given to a patient weighing 220 lb?
a. 2tsp
b. 2.5 tsp
c.3 tsp
d. 2 tbsp
a. 2tsp
What is the dose of a drug for a 6-year old child if the average adult dose is 1 ½ grains?
a. ½ g
b. ½ gr
c. ½ mg
d. ½ mcg
b. ½ gr
If 250 units of an antibiotic weighs 1 mg, how many units are in 25 mg?
a. 6,256
b. 6,255
c. 6,250
d. 6,500
c. 6,250
A patient is t receive 260 mcg of a drug 4 times a day for 14 days. How many 1/250 grain tablets must be dispensed?
a. 66
b. 58
c. 46
d. 56
d. 56
A pharmacist had, on the first month, 54 gallons of 95% alcohol. During the month, 35 gallons were used in the manufacture of pharmaceutical products. How many proof gallons of alcohol were on hand at the end of the month?
a. 36.1
b. 36.5
c. 36.4
d. 36.3
a. 36.1
Calculate the volume, in wine gallons, represented by 175 proof gallons of 75% (v/v) alcohol.
a. 125
b. 135
c. 115
d. 145
a. 125
How many proof gallons are contained in 500 wine gallons of Diluted Alcohol NF that contain 49% (v/v) of pure alcohol?
a. 480
b. 490
c. 470
d. 489
b. 490
Convert 100°C to °F.
a. 221°F
b. 312°F
c.212°F
d. 215°F
c.212°F
What is the molarity of a solution that is prepared by dissolving 10 g of KCl (molwt 74.5) in enough water to make 500 mL of solution?
a. 0.288
b. 0.258
c. 0.268
d. 0.168
c. 0.268
A pain reliever tablet is listed at P100 per dozen, less a discount of 33.5%. The manufacturer offers 12 tablets free for every 6 dozens purchased. What is the net cost per tablet when the drug is bought on the deal?
a. P4.25
b. P4.35
c.P4.75
d. P4.50
c.P4.75
12 bottles of 100-tablet multivitamins cost P3000 when bought on a promotional deal. If the tablets sell for P450 per bottle, what percent of gross profit is realized on the selling price?
a. 45%
b. 44.44%
c.35.44%
d. 40.44%
b. 44.44%
A prescription item costs P13.50. Using a markup of 50% on the cost, what would be the selling price for the prescription?
a. P20.50
b. P20.35
c.P20.35
d. P20.25
d. P20.25
Peppermint spirit contains 10% (w/v) of peppermint oil. How many mL of peppermint oil should be used in preparing 1 gallon of the spirit?
a.379 mL
b. 3.79 mL
c.37.9 mL
d.3,785 mL
e. 0.400 mL
a.379 mL
What is the percent concentration of cholesterol if a patient's blood serum level is determined to be 260mg%?
a. 26%
b. 2.6%
c. 0.26%
d.0.26%
e. 260%
c. 0.26%
The normal body temperature is 37°C. Express this in °F.
a. 96.8°F
b. 98.6°F
c.28.3°F
d. 100°F
b. 98.6°F
Number of grams of constituents per 100 mL solution:
a. % w/w
b.% v/v
c.% w/v
d.none of the given
c.% w/v
Admixture with solutions or mixture of greater strength or by evaporation of the diluent:
a. diluted
b. saturated
c. concentrated
d. none
c. concentrated
Dilutions of potent medicinal substances:
a. triturations
b. diluents
c. extracts
d. extractives
e. none
a. triturations
2 solutions that have the same osmotic pressure:
a. hypotonic
b. hypertonic
c. isoosmotic
d. isotonic
c. isoosmotic
What does 0.5mg/ 500 g capsule mean when expressed in %w/w?
a. 0.5%
b. 0.1%
c. 5%
d.1%
e.none
b. 0.1%
If ampules of amyl nitrate inhalant each contain 0.3 mL of amyl nitrate, having a sp gr of 0.87, how many grams of the drug would be used in preparing 4000 ampules?
a. 4401 g
b. 4014 g
c.1044 g
d.1404 g
e. 1440 g
c.1044 g
______ grams is also equivalent to 10 milliliters of water.
a. 10
b. 100
c. 1.00
d. 0.01
e. 0.01
a. 10
In preparing 250 mL of a certain lotion, a pharmacist used 16 mL of liquefied phenol. What was the percentage of liquefied phenol in the lotion?
a. 15.63%
b. 0.064%
c. 6.4%
d. none
c. 6.4%
Using a vial containing 200,000 units of Pen G sodium, how many mL of solvent should be added to the dry powder in preparing a solution having a concentration of 25, 000 units/mL?
a. 5 mL
b. 10 mL
c.8 mL
d.12 mL
e. 15 mL
c.8 mL
Paregoric acid contains the equivalent pf 0.4% opium. How many mg of opium are represented in a tablespoon dose of equal parts of paregoric and kaopectate?
a. 20 mg
b. 25 mg
c.15 mg
d.30 mg
e. 28 mg
d.30 mg
White ointment has a label claim of 5 g/ 1000g. When expressed in % w/w, this is equal to:
a. 5%
b. 0.5%
c. 0.05%
d.50%
e. 0.005%
b. 0.5%
Number of mL of constituents per 10 mL of solution:
a. percent weight per volume
b. % v/v e. none of the given
c. percent volume in weight
d. % w/w
b. % v/v e. none of the given
An instrument for measuring temperature, or intensity of heat:
a. barometer
b. thermometer
c. pycnometer
d. spectrophotometer
b. thermometer
The term expresses the number of milligrams of a substance in 100 mL of liquid:
a. milligram percent
b. mg %
c. both
d. none
b. mg %
How many mL of water should be added to 300 mL of 1:750 (w/v) solution of benzalkonium chloride to make a 1:2500 (w/v) solution?
a. 997.5 mL
b. 900 mL
c.90.23 mL
d. 60000 mL
a. 997.5 mL
Methotrexate sodium in action contains 25 mg of methotrexate sodium per mL. Express the % concentration of methotrexate in the injection.
a. 0.25%
b. 25%
c.0.025%
d. 2.5%
e. 0.0025%
d. 2.5%
Expression of taking 50% (v/v) alcohol or proof spirits as 100 proof:
a. 50% v/v alcohol
b. 50% proof spirit
c. proof spirit
d. proof strength
e. none
d. proof strength
90% of alcohol is how many proof?
a. 180 proof
b. 45 proof
c. 135 proof
d. none
a. 180 proof
Aqueous solution containing 50% (v/v) of absolute alcohol.
a. proof solution
b. proof spirit
c. % proof
d.% solution
e.none
b. proof spirit
How many mL of 1:16 solution of sodium hypochlorite should be used in preparing 5000 mL of a 0.5% solution of sodium hypochlorite for irrigation?
a. 200 mL
b. 400 mL
c.600 mL
d.800 mL
e. 100 mL
b. 400 mL
How many gallons of 95% (v/v) alcohol would contain 91.2 proof gallons?
a. 137
b. 48
c. 173.28
d. 52
e.none
b. 48
How many liters of 2% (w/v) iodine tincture can be made from 123 g of iodine?
a. 6150 L
b. 6.15 L
c. 61.15 L
d. none of the given
a. 6150 L
How many milligrams of a certified red color should be used in preparing 5 L of a 0.1% solution?
a. 0.005 g
b. 0.5 g
c.5 g
d. 0.05 g
c.5 g
What is the percentage of alcohol in a mixture of 4000 mL of 60% and 3000 mL of 30% alcohol?
a. 47%
b. 3666%
c. 82.5%
d. 110%
a. 47%
A gallon of a certain lotion contains 946 mL of benzyl benzoate. Calculate the % v/v of benzyl benzoate in the lotion.
a. 20%
b. 25%
c.18%
d.28%
e. 15%
b. 25%
How many grams of a dug substance should be dissolved in 1800 mL of water to make 10% (w/w) solution?
a. 100 g
b. 50 g
c.300 g
d.25 g
e. 200 g
e. 200 g
LidocaineHCl syringe contains 100 mg per 5 mL injection. Express this concentration in % (w/v).
a. 0.2%
b. 20%
c.10%
d. 1.0%
e. 2%
e. 2%
Expression of concentrations of weak solutions or liquid preparations:
a. ratio strength
b. concentrations per se
c. strength volume
d. concentration gradient
e. all of the given
a. ratio strength
If the dose of the drug is 100 mg how many doses are there in 100 mg?
a. 100
b. 1000
c. 10000
d. 100000
e. 1000000
b. 1000
1.5 mg/ 5 mL of echothipateacetonide ointment is also equivalent to:
a. 0.3%
b. 30%
c.0.003%
d.0.03%
e.none
d.0.03%
How many of a grams of a drug, tannic acid should be dissolved in 320 mL of glycerine having a specific gravity of 1.25 to make a 20% (w/w) solution?
a. 8 g
b. 0.8 g
c. 80 g
d. 800 g
e. 0.008 g
d. 800 g
If the specific gravity of alcohol is 0.812, what is the weight in kilograms of 10 L?
a. 2.81 kg
b. 8.12 kg
c.2.18 kg
d.1.82 kg
e. 8.21 kg
b. 8.12 kg
The drawback on alcohol is $11.50 per proof gallon. If an eligible claimant used 18 gallons of 95% alcohol, how much drawback will be allowed?
a. 2941 mL
b. 850 mL
c.11765 mL
d. 85 mL
a. 2941 mL
Convert 6:1000 (w/v) to mg/mL:
a. 60 mg/ 10 mL
b. 6 mg/ mL
c.600 mg/ 100 mL
d.all of the above
d.all of the above
How many grams of opium containing 15% (w/w) of morphine and how many grams of lactose should be used to prepare 150 g of opium containing 10% of morphine?
a. 50 g
b. 5 g
c. 0.5 g
d. 500 g
e .none
a. 50 g
If 50 tablets contain 0.625 g of an active ingredient, how many tablets can e prepared from 31.25 g of the ingredient?
a. 1000 tablets
b. 2500 tablets
c. 3030 tablets
d. none of the above
b. 2500 tablets
How many fluidounces of a 7% solution can be made from 142 grains of potassium iodide?
a. 4.6
b. 5
c. 4.5
d. 4.4
c. 4.5
ss is equal to:
a. one half
b. one whole
c. one
d. none of the above
a. one half
If 2 tablets contain 550 mg of paracetamol, how many tablets should contain 3000 mg?
a. 10
b. 12
c. 8
d. 11
d. 11
How many grams of water are needed to make 300 g of an 8% w/w solution of lime water?
a. 275 g
b. 276 g
c.300 g
d. 277 g
b. 276 g
A 250 mL infusion bottle contains 2.0 mEq of calcium per mL. How much calcium in grams does it contain? Ca: molwt = 40.0
a. 3.0 g
b. 5.0 g
c. 10.0 g
d. none of the above
c. 10.0 g
If the ratio 1:250 is expressed as %, the result is:
a. 0.004%
b. 0.04%
c. 0.4%
d. 0.004%
e. 0.05%
c. 0.4%
How many mL of 1:5000 (w/v) solution of phenyl mercuric nitrate can be made from 125 mL of a 0.5% solution?
a. 1050
b. 5 c. 80
d. 3125
e. none
d. 3125
How much cod liver oil is necessary to make 2500 capsules, each containing 0.33 mL?
a. 7.57 mL
b. 825 mL
c.757 mL
d. 0.0012 mL
b. 825 mL
How many chloramphenicol capsules, each containing 250 mg of chloramphenicol, are needed to provide 25 mg/kg of body weight per day for 1 week for a person weighing 132 lb?
a. 42
b. 24
c. 6
d. 10
a. 42
How many fluidounce-bottles can be packed from a 3-gallon bottle of antipyretic syrup?
a. 90
b. 70
c. 85
d. 96
d. 96
q.s.
a. pint
b. right eye
c. a sufficient quantity
d. when required
c. a sufficient quantity
How many mg are there in 3/8 grains?
a. 23 mg
b. 23.5 mg
c. 24 mg
d. 24.5 mg
c. 24 mg
How many grams of a drug substance are required to make 160 mL of a solution, each tsp of which contains 2 mg of the drug substance?
a. 64 g
b. 0.064 g
c.0.015 g
d. 0.64 g
b. 0.064 g
Roman numeral for 1050:
a. ML
b. MC
c.MD
d. DC
a. ML
If one tablespoonful is prescribed as the dose, approximately how many doses will be contained in one pint of the medicine?
a. 32
b. 16
c. 22
d. 10
a. 32
How many mL of 1:50 stock solution of ephedrine sulfate would be needed to prepare 30 mL of the prescription?
Rx Ephedrine sulfate 0.25%
Normal saline q.s. 10 mL
a. 1.25
b. 3.75
c. 4
d. 7.5
e. 12.
b. 3.75
The ratio expressed decimally of the weights of a substance chosen as a standard.
a. specific gravity
b. percentage
c. ratio
d. density
e. percent
a. specific gravity
A vitamin capsule contains 6.25 mcg of Vit B12. How many capsules can be prepared from 1 g of vit B12?
a. 106000
b. 160000
c. 100600
d. none
b. 160000
Unit of weight of metric system:
a. gram
b. scruple
c. dram
d. grain
e. liter
a. gram
The dose that can kill the patient:
a. lethal dose
b. toxic dose
c. therapeutic dose
d. maintenance dose
a. lethal dose
The average body surface area of an adult is:
a. 1.76 m2
b. 1.73 m2
c.1.7 v
d. 1.73 cm
b. 1.73 m2
B.i.d. means:
a. once a day
b. twice a day
c. three times a day
d. four times a day
b. twice a day
Ung means:
a. cream
b. cataplasm
c. cerate
d. ointment
d. ointment
100 proof strength of alcohol is equivalent to:
a. 100%
b. 50%
c.70%
d. 45%
b. 50%
One kilogram is equivalent to:
a. 1000 mg
b. 2.5 lb
c.1000 g
d. 5.432 gr
c.1000 g
One avoirdupois pound is equivalent to:
a. 373.2 g
b. 454 g
c.28.35 g
d. 31.1 g
b. 454 g
What is the specific gravity of a liquid having a specific volume of 0.825?
a. 0.825
b. 1.212
c. none of the choices
b. 1.212
How many mL of a 0.5% gentian violet stock solution are needed to prepare one gallon of a 1:500 solution?
a. 151.4
b. 15.14
c. 9.46
d. 94.6
a. 151.4
What is the percentage of alcohol in a mixture of 400 mL of 95% v/v alcohol, 100 mL of 70% v/v alcohol and 0.6 L of 50% v/v alcohol?
a. 75%
b. 7.5%
c. 68%
d.69%
e. 72.7%
c. 68%
An elixir is to contain 250 mcg of an alkaloid in each teaspoon dose. How many g of the alkaloid will be required to prepare 5L of the elixir?
a. 25 g
b. 2.5 g
c. 0.25 g
d.5 g
e. 0.5 g
c. 0.25 g
If alcohol is taxed at P12.50 per proof gallon, what is the tax on 30 wine gallons of 95% v/v alcohol?
a. P197
b. P57
c.P16
d. P712.50
e. P85
d. P712.50
Temperature at which specific gravity should be performed according to USP/ NF:
a. 4°C
b. -40°C
c.25°C
d.25°C
e. -40°C
c.25°C
One fluidounce of a cough syrup contains 10 gr of sodium citrate, how many mg are contained in 5 mL?
a. 50
b. 109
c. 40
d. 108
e. 30
d. 108
Equivalent to 1:2500:
a. 0.4%
b. 0.04%
c. 0.01%
b. 0.04%
The number of mL of a liquid that would provide a patient with 2 teaspoonfuls twice a day for 7 days is:
a. 140
b. 70
c. 35
a. 140
A prescription calls for 0.3 g of phosphoric acid with a sp gr of 1.71. How many mL should be used in compounding the prescription?
a. 0.5
b. 5.7
c. 0.18
d. 3
c. 0.18
Express in percentage the fluoride concentration in drinking water given in 0.6 ppm.
a. 0.06%
b. 0.00006%
c.0.0006%
d. 0.006%
b. 0.00006%
q.i.d. means:
a. once a day
b. twice a day
c. three times a day
d. four times a day
d. four times a day
How many grams of silver nitrate should be used in preparing 500 mL of a solution such that 10 mL diluted to a liter will yield 1:5000 solution?
a. 5
b. 10
c. 15
d. 20
b. 10
How many proof gallons are represented by 54 wine gallons of 95% alcohol:
a. 51.3
b. 175.93
c. 87.9
d. 102.6
d. 102.6
If 1000 mL of syrup with a specific gravity of 1.313 contains 850 g of sucrose. What is the % (w/w)?
a. 6.5%
b. 65.5%
c. 64.74%
d. 64%
c. 64.74%
A child weighing 25 lbs is to receive 5 mg of phenytoin per kg of body weight daily as anticonvulsant. How many mL of pediatric phenytoin suspension containing 30 mg per 5 mL should this child receive?
a. 1.5 mL
b. 5.5 mL
c.7.5 mL
d.6.5 mL
e. 9.47 mL
e. 9.47 mL
If a patient's blood urea nitrogen is determined to be 15 mg/ dL, what is the equivalent percent concentration?
a. 0.015
b. 1.5
c. 15
d. 0.15
a. 0.015
Prescription calls for 250 mL of a liquid medicine contains 0.025 g of atropine sulfate and specific dose of 5 mL . Each dose contains ____ mg of atropine sulfate.
a. 0.000
b. 0.5
c. 5
d. 25
b. 0.5
A solution contains 660 mg of NaF per 120 mL and has a dose of 10 gtts. If the dispensing dropper calibrates 30 gtts per mL. How many mg of NaF are contained in each dose?
a. 2.2
b. 0.5
c. 2.75
d. 5.5
e. 1.83
e. 1.83
How many mL of a 3% solution can be made from 27g of ephedrine sulfate?
a. 900 mL
b. 930 mL
c.850 mL
d. 880 mL
a. 900 mL
How many mL of 1:50 stock solution of ephedrine sulfate would be needed to prepare 30 mL of the ff. prescription?
Rx Ephedrine sulfate 0.25%
Normal saline solution q.s. 10 mL
a. 1.25
b. 3.75
c. 4
d. 7.5
e. 12.5
b. 3.75
Convert -12°C to °K.
a. 261 K
b. 285 K
c.500 K
d. 48 K
a. 261 K
How many proof gallons are represented why 54 wine gallons of alcoholic beverage with a proof strength of 50?
A. 54
B. 27
C.108
D. 100
B. 27
How many capsules of an antibiotic are needed to provide 25 mg/kg/day for 6 days for a man weighing 180 lbs. if one capsule contains 250 mg of the antibiotic?
A. 49
B. 59
C. 58
D. 39
E.45
A. 49
Sixty capsules of atropine, each to contain 1/250 gram, are to be made. How many tablets of atropine sulphate 0.5 mg each are needed to make the capsule?
A.32 tab
B. 10 tab
C. 130 tab
D. 25 tab
E. NOTA
E. NOTA
What is the % of alcohol ina mixture of 400mL of 40% alcohol and 600 mL of a 60% alcohol?
A.50%
B. 57%
C.52%
C.52%
A prescription calls for 0.3 g of phosphoric acid with a specific gravity of 1.71. How many mL should be used in compounding the prescription?
A. 0.5mL
B. 0.7mL
C. 0.18 mL
D. 0.3 mL
C. 0.18 mL
How many grams of glacial acetic acid (99.9% w/w) must be added to 1 galloon of purified water to obtain a solution containing 0.25% acetic acid?
A. 1.2 g
B. 9.5 g
C. 12 g
B. 9.5 g
Lanoxinpediatric elixir contains 0.05mg of digoxin/mL. How many micrograms (mcg) are there in 3 mL of the elixir?
A. 1.5
B.0.0015
C. 150
D.15
E.NOTA
C. 150
One thousand nanograms equals one:
A. kilogram
B. microgram
C. milligram
B. microgram
A 20 ml vial of a biological solution is labelled 2.0 mega units. How many units of the drug are present in every mL of the solution?
A. 100
B. 1000
C. 2000
D. 10000
E. 100000
E. 100000
The concentration of NaF in a community's drinking water is 0.6 ppm. Express this concentration as percentage.
A.0.00006%
B. 0.0006%
C. 0.006%
D. 0.06%
E 0.6%.
A.0.00006%
A pharmacist adds 120 mL of aluminun acetate solution USP containing 5% aluminum acetate to one liter of sterile water for irrigation. What is the % w/v concentration of aluminum acetate present?
A.0.5%
B. 0.54%
C. 0.6%
D. 1.07%
E. 1.20%
B. 0.54%
A pharmacist has 50mL of 0.5% gentian violet solution. What will be the final ratio if he dilutes the solution to 1250 mL with purified water?
A. 1:8
B. 1:200
C. 1:50
D. 1:1000
E. 1:5000
E. 1:5000
How many 8-fluidounce bottles can be packed from a 2-gallon bottle of cough syrup?
A.15
B. 20
C. 28
D. 32
D. 32
If we divide 5L into 10 equal parts, what is the volume of 1 part?
A.50mL
B. 0.005L
C. 0.500L
D. 0.05 L
C. 0.500L
Express 1:2000 as percentage strength
A.0.5%
B. 5%
C.0.05%
D.0.0005%
C.0.05%
One teaspoonful is equivalent to:
A.5mL
B. 10mL
C.15mL
D.20mL
A.5mL
If 75 pounds of chemical costs P250, what will be the cost of 95 pounds?
A. P316.67
B. P197.37
C. P28.50
D.P400
A. P316.67
If a cough syrup contains 0.24g of codeine phosphate in 20 mL, how many milligrams are contained in each tsp. dose?
A.20mg
B.15mg
C.10mg
D.5mg
C.10mg
10 pints of a 5% solution are diluted with 30 pints of diluent, what is the percentage strength of the dilution?
A.1.25%
B.1.67%
C.60%
D.15%
A.1.25%
A pharmacist weighed 800mg of a substance on a balance of dubious accuracy. When checked on a balance of high accuracy, the weight was found to be 785mg. Calculate the % error in the first weighing.
A.2%
B.1.88%
C. 1.9%
D. 1.78%
B.1.88%
A pharmacist attempts to weigh 80 mg of sodium carbonate on a balance having a sensitivity requirement of 4mg. calculate the maximum potential w\error in terms of percentage.
A. 2%
B.3%
C.4%
D.5%
D.5%
Peppermint spirit contains 10 %( v/v) of peppermint oil. How many mL of peppermint oils should be used in preparing 1 gallon of the spirit?
A. 390mL
B. 400mL
C. 377mL
D.378.5mL
D.378.5mL
What is the weight in grams of 4 fluidounces of orange oil with a specific gravity of 0.844?
A. 105g
B. 110g
C. 95g
D.99.83g
D.99.83g
How much water should be mixed with 250grams of 93% solution to make a 10% solution?
A. 2L
B. 20mL
C. 9.2mL
D. 200mL
A. 2L
How many 5cc doses may be obtained from 1L of a liquid?
A. 20
B. 200
C. 2000
D. D. 2
B. 200
A physician prescribes tetracycline oral suspension (125mg/ml) for Mr.delaCruz to be taken in doses of 2 teaspoons four times a day for four days, and then 1 teaspoon four times a day for four days, and then 1 teaspoonful four times a day. How many mL of the suspension should be dispensed to provide the quantity for the prescribed dosage form?
A. 250mL
B. 200mL
C. 210mL
D.150mL
B. 200mL
How many mL of methyl salicylate should be used to prepare 1 pt of a 5 %( v/v) solution?
A .24.10mL
B. 23.65mL
C. 23.70mL
D. 24.50mL
B. 23.65mL
Rx
Potassium permanganate tablets 0.30g.
Dispense 50 tablets.
Signa: three tablets in 6pt of water and use as directed.
Express the concentration as ratio strength of solution prepared according to the direction given in the prescription.
A.1:3153
B.1:3253
C.1:3053
D. 1:3000
A.1:3153
A physician requests that an iso-alcoholic elixir containing 30.0% alcohol prepared. How much low alcoholic elixir (10% of alcohol) and high alcoholic elixir (78% of alcohol) must be mixed to prepare 1 gallon of iso-alcoholic elixir?
A.1481 ml of low and 953 ml of high
B. 1520 ml of low and 953 ml of high
C.1407 ml of low and 3377.64 ml of high
D. 2925 ml of low and 1450 ml of high
D. 2925 ml of low and 1450 ml of high
Convert 104°F to centigrade
A.20.0°C
B.30.0°C
C.40.0°C
D.50.0°C
C.40.0°C
How many proof gallons are contained in 3 wine gallons of 50% (v/v) alcohol?
A. 5 proof gallons
B. 4 proof gallons
C.3 proof gallons
D.2 proof gallons
C.3 proof gallons
What is HLB of a mixture of 20.0% of span 80 and 80.0% of tween 80? HLB of span 80=5.3; HLB of tween 80=15.0
A. 6.3
B. 8.9
C. 10.3
D. 12.9
D. 12.9
A formula for a dermatological cream calls for a 15g of an emulsive blend consisting of tween 20 and span 40. If the required HLB is 11.70 how many grams of each emulsifier should be used in emulsifying the cream?
A.5g tween 20 and 10g span 40
B.7.5g tween 20 and 7.5 span 40
C.2.5g tween 20 and 12.5g span 40
D. none of the above
D. none of the above
2gr of a drug is equivalent to:
A. 129.6mg
B. 127.4mg
C. 132.1mg
D.200mg
A. 129.6mg
How many teaspoonfuls are there in 3 tablespoonfuls?
A. 6
B. 9
C.12
D. None of the above
B. 9
If 5 fluidounce of a 1:1000 (w/v) solution of a sterile alcohol diluted to 2pts what will be the ratio strength w/v of the solution?
A.1:3200
B.1:6400
C.1:8000
D.1:6300
B.1:6400
A method of solving problems that involved the mixing of solutions or mixture of solids
A. Alligation Medial
B. Alligation Alternate
C. Both A and B
D. None
C. Both A and B
How many grams of sucrose are required to prepare 2000 ml of 4% solution?
A. 50g
B. 80g
C. 90g
D.100g
B. 80g
A system of measurement used only in compounding prescriptions
A.Metric System
B.Apothecary System
C.Avoirdupois System
D.All
B.Apothecary System
Purified water contains not more than 10ppm of total solids. Express this concentrations as a percentage
a.1.00%
b.0.001%
c.0.01%
d.10%
b.0.001%
How many mg are there in 3/8 grains?
a.23.5mg
b.24mg
c. 23mg
d.24.5mg
d.24.5mg
______ is the fundamental unit for volume of the metric system
a.grain
b.liter
c.meter
d.gram
b.liter
Which expression is the largest number?
a.2/4
b.1/150
c.1/50
d.1/300
a.2/4
In dosing the drug gentamicin in pediatric patients for every 1mg/kg of gentamicin administered, serum drug concentration are expected to increase by 2.5mcg/ml. What would be the expected serum drug concentration following an administration of a 2.5mg/kg dose gentamicin?
a.5mcg/ml
b.6.25mcg/ml
c.10mcg/ml
d.2.5mcg/ml
b.6.25mcg/ml
A physician places a patient on a daily dose of 48 units of U-80 insulin. How many ml should the patient inject each day?
a.0.4
b.0.5
c.0.6
d.0.25
c.0.6
How many fl.oz bottles of lagundi syrup can be prepared from 5 gallons of the syrup?
a.639
b.640
c.540
d.740
b.640
A prescription calls for 10units of a drug to be taken 3 times a day. How much will the patient have taken after 7days?
a.21.0 units
b.0.21 units
c.2.10 units
d.210 units
d.210 units
A physician orders meprobamate 0.2g how much is to be administered if the dose on hand is 400mg in each tablet?
a.do not dispense
b.give 2tablets
c.give 1tablet
d.give 1/2tablet
d.give 1/2tablet
The dose of drug for children based on body surface are based on:
a.weight and age
b.weight and height
c.age and height
d.width and height
b.weight and height
If glycerin (sp gr 1.25) costs P131.00 per pint, how much would 10 lbs cost?
a.105.90
b.1105.90
c.1025.90
d.1005.90
d.1005.90
The pediatric dose of cefadroxil is 30mg/kg/day. If a child is given a daily dose of 2 tespoonfuls of a suspension containing 125mg of cefadroxil per 5 ml. what is the weight in lb.of child?
a.18.5lbs
b.18.8 lbs
c.18.3 lbs
d.18.1 lbs
c.18.3 lbs
What is the weight of 60ml oil whose density is 0.9624 g/ml?
a.5.770g
b.57.7g
c.6.0g
d.0.577g
b.57.7g
Change 1/10% to a common fraction
a.1/100
b.1/10
c.1/1000
d.1/.01
c.1/1000
A patient is determined to have 0.8mg of glucose in each ml of blood. Express the concentration of glucose in the blood as mg %
a.800mg%
b.0.8mg%
c.8mg%
d.80mg%
d.80mg%
Calculate the number of kg of a 20% (w/w) solution which can be made from a kg of solute?
a.5.0
b.5000
c.0.5
d.50.0
a.5.0
If a patient is determined to have 100g% of blood glucose, what is the equivalent concentration from a kg of solute
a.1
b.10
c.40
d.100
d.100
Change to percent the number 1/300
a.3%
b.33%
c.3.3%
d.1/3%
d.1/3%
A pharmacy aide adds 75ml of strong iodine solution USP (t.o%w/v) to 1L of sterile water for irrigation. What is the %w/v of iodine percent?
a.0.35%
b.0.375%
c.0.53%
d.0.60%
a.0.35%
Express 0.2% as a ratio strength
a.1:5000
b.1:50
c.1:500
d.1:5
c.1:500
A cupric chloride injection (0.4mg/ml) is used as an additive to IV solutions for TPN. What is the final ratio strength of copper in the TPN solution if 2.5ml of the injection is added to enough of the IV solution to prepare 500ml?
a.1:500
b.1:5000
c.1:500000
d.1:50000
a.1:500
How many ml of a 1:400 (w/v) stock solution should be used to make 4L of a 1:2000 (w/v) solution?
a.1000ml
b.800ml
c.1600ml
d.200ml
b.800ml
Prepare 1000ml of KMnO4 1:12000 compresses out of KMnO4 1:8000
a.add 333.3ml water to 1000ml KMnO4 1:8000
b.add 666.6ml water to 333.3ml KMnO4 1:8000
c.add 333.3ml KMnO4 1:8000 and enough water to make a final volume of 1000ml
d.add 333.3ml water to 666.6ml KMnO4 1:8000
d.add 333.3ml water to 666.6ml KMnO4 1:8000
You have a stock solution of 50% sodium nitrate and you were asked to prepare 300ml of a 10% solution. How many ml are needed?
a.20
b.15
c.30
d.60
d.60
How many ml of 24% (w/v) concentrate of saline solution should be used in preparing 600ml of a solution such that 10ml diluted to a liter will yield a 0.09% solution?
a.300ml
b.150ml
c.50.0ml
d.225ml
d.225ml
How many grams of 10% (w/w) ammonia solution can be made from 1800g of 28% (w/w) strong ammonia solution?
a.6428.57g
b.5050g
c.50400g
d.342.86g
b.5050g
How many grams of a 1:10 trituration of atropine sulphate are required to obtain 25mg of atropine sulphate?
a.250
b.25
c.0.25
d.2.5
c.0.25
The injection form of calcium gluconate (Ca(C7H13O8)2 contains 1g of drug in 10ml solution. How many mEq of calcium are present? (Ca=40,(Ca(C7H13O8)2=430)
a.0.78
b.2.3
c.4.7
d.503
c.4.7
Five pints of HCl weigh 2.79kg. calculate its specific gravity
a.0.810
b.1.180
c.2.180
d.3.180
b.1.180
From the following formula, calculate the quantity of sodium carbonate required to make 1500g of powder.
Rx Calcium carbonate 5 parts
Magnesium oxide 1 part
Sodium carbonate 4 parts
Bismuth subcarbonate 3 parts
a.576.9g
b.461.5g
c. 346.2g
d.115.4g
b.461.5g
The USP states that 1g of a chemical is soluble in 10ml of alcohol. What is the percentage strength of a saturated solution of this chemical if alcohol has a sp gr of 0.80?
a.10.0% w/w
b.11.1% w/v
c.11.1% w/w
d.12.5% w/v
c.11.1% w/w
Reduce 25 mcg to g
a.2.5x10-6
b.2.5x10-5
c.2.5x10-4
d.2.5x10-3
b.2.5x10-5
How many gallons of 20% alcohol (v/v) would be equivalent to 20 proof gallons?
a.50
b.60
c.75
d.100
a.50
A pharmacist purchased 5 gallons of alcohol. At different times, 2pints, 2gallons, 8fluidounces and ½ gallon were used by the pharmacist. What volume in fluidounces, remained?
a.256
b.264
c.280
d.296
c.280
If some moist crude drug contains 7.2% (w/w) of active ingredient and 21.6% of water what will be the percentage (w/w) of ctive ingredient after the drug is dried?
a.7.2
b.9.2
c.11.2
d.13.2
b.9.2
How many grams of petrolatum should be added to 250g of a 25% sulphur ointment to make a 5% ointment?
a.1000g
b.1250g
c.500g
d.100g
a.1000g
Concentration of a weak solution of liquid preparation is expressed in terms of:
a.proof strength
b.percentage strength
c.ratio strength
d.mEq
c.ratio strength
A cough syrup is labelled as containing 20% alcohol by volume. Which of the ff.statement is/are true?
a.Each 100ml of syrup contains exactly 20ml alcohol USP
b.The proof strength of this product is 40
c.All of these
d.There is the equivalent of 20ml of absolute alcohol present in every 100ml of syrup
c.All of these
How many ml of syrup having asp gr of 1.350 should be mixed with 300ml of a syrup having a sp gr of 1.250 to obtain a product having a sp gr 0f 1.310?
a.3500ml
b.4500ml
c.4600ml
d.5500ml
b.4500ml
If 800g of a 5% coal tar ointment is mixed with 1200g of a 10% coal tar ointment, what is the concentration of a coal tar in the finished product?
a.8.5%
b.9.5%
c.8%
d.9%
c.8%
How many gallons of water are needed to dilute a 1gallon of 6^cone of antiseptic solution to make 2% final concentration.
a.1 gallon
b.3 gallons
c.2 gallons
d.1.5gallons
c.2 gallons
How much water should be added to 2500ml of 83% (v/v) alcohol to prepare 50% (v/v) alcohol?
a.1650
b.1660
c.1550
d.1560
a.1650
An order calls for 500ml of a solution of potassium sulfate to made so that if contains 10mEq of potassium sulfate. How many grams of potassium sulfateis required to prepare yhe solution?
a.0.495
b.0.870
c.4.44
d.0.440
b.0.870
Concentrations of electrolytes in solutions are expressed in terms of:
a. g%
b. g/ml
c. mEq
d. millimole
c. mEq
How many mg of magnesium sulfate (MW 120) should be added to an IV solution to provide mEq of Mg+2 per liter?
a.300mg
b.210mg
c.307mg
d.200mg
a.300mg
A solution contains 10mg%Mg+2 (at.Wt.24). how many mEq are there in a liter?
a.4.33
b.8.31
c.6.21
d.8.55
b.8.31
How many mEq of KCl are represented in 15ml of a 10% (w/v) potassium chloride elixir?
a.20.1mEq
b.60mEeq
c.0.06mEq
d.167mEq
a.20.1mEq
An antihypertensive drug lists as P180.00 per dozen tablets less a discount of 33 1/3% for a purchase of 100 dozens plus an additional promotional discount of 10%. Calculate the net cost per unit.
a.P9.00
b.P9.15
c.P9.25
d.P9.50
a.P9.00
How many ml of glycerine would be needed to prepare 1 lb of an ointment containing 5% w/w glycerine is 1.25g/ml
a.1.2
b.22.7
c.18.2
d.24
c.18.2
A pharmacist receives a bill of goods amounting to P35,400 less a 5% discount for quantity buying and a 2% cash discount for paying the bill within 10 days. What is the net amount of the bill?
a.P32,950.40
b.P32,957.40
c.P3550
d.P3750
b.P32,957.40
Find the difference in the net cost of a bill of goods amounting to P100,000 if the bill is discounted at 33% and 12%
a.P3960
b.3860
c.3550
d.3750
a.P3960
What is the ratio strength (w/v) of a solution made by dissolving 5 tablets each containing 2.25 g of sodium chloride in enough water to make 1800ml?
a.1:160
b.1:360
c.1:1000
d.1:300
a.1:160
How many grams of reserpine would be required to prepare 10,000 tablets each containing 250mg of reserpine?
a.2.5
b.2500
c.250
d.25
b.2500
Physicians prefer the calculation of doses for children based on:
a.age
b.weight
c.body surface area
d.height
c.body surface area
If the adult dose of a drug is 90mg, what should be the dose for a child with a body surface area of 0.60 sq.m.?
A.31.21mg
B. 54mg
C. 150mg
D.540mg
A.31.21mg
The drawback on alcohol is P450 per proof gallon. If an eligible claimant used 8 gallons of 95% alcohol how much drawback will be allowed?
A.1,937
B.3,680
C.5,275
D.6,992
D.6,992
How many milligrams of gentian violet should be used in preparing the following solution?
Rx Gentian Violet (1:10,000)
Signa: Instill as directed
A.5
B.0.05
C.0.50
D.500
A.5
Rx
Antipyrine 7%
Glycerine ad 60.0
Signa: Five drops in the right eye.
How many grams of antipyrine should be used in compounding the prescription?
A.2
B.7
C.5.5
D.4.2
D.4.2
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