## ROSS IS ME! MOD 3/Dosage Calculations Problems, Ch 33

##### Created by:

dwampler  on May 20, 2012

##### Description:

Dosage Calculations Problems

Chapter 33

Clinical Medical Assisting

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# ROSS IS ME! MOD 3/Dosage Calculations Problems, Ch 33

 Convert 5,000 mcg to mg.mcg > mg > g > kg (divide by 1,000) 5,000 mcg divided by 1,000 = {5mg}
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#### Definitions

Convert 5,000 mcg to mg. mcg > mg > g > kg (divide by 1,000)
5,000 mcg divided by 1,000 = {5mg}
Convert 44 lb to kg. lb > kg (divide by 2.2)
44 lb divided by 2.2 = {20kg}
Convert 0.003 L to mcL. kL>L>mL>mcL (multiply by 1,000)
0.003 L x 1,000 = 3mL
3mL x 1,000 = {3,000mcL}
Convert 5 hours to minutes. hr > min (x by 60)
5hr x 60 = {300 min.}
Give an amount of mass per tablet, how many tablets do you require? Metrophrolol (Lopressor), 25 mg PO, is ordered. Metropolol is available as 50 mg tablets. How many tablets would the nurse administer? ordered/have = Y (tablets ordered)
25mg/50mg = {0.5 tablets}
Give an amount of mass per tablet, how many tablets do you require? Potassium chloride is available as 10 mg per tablet. Potassium Chloride (K-Dur), 40mg, is ordered. How many tablets would the nurse administer? ordered/have = Y (tablets ordered)
40mg/10mg = {4 tablets}
Give an amount of mass per liquid, how much liquid do you require? Phenytoin (Dilantin), 0.1 g PO, is ordered to be given through a nasogastric tube. Phenytoin is available as 30mg/5mL. How much would the nurse administer? ordered/have x volume per have = Y(liquid required) Convert 0.1g to mg.
kg>g>mg>mcg (x by 1,000)
0.1g x 1,000 = 100mg
100mg/30mg x 5mL = {16.7 mL}
Give an amount of mass per liquid, how much liquid do you require? Ordered Lasix 40mg IV push now. Available 80mg in 1mL. How much will the nurse draw up? ordered/have x volume per have = Y(liquid required)
40mg/80mg x 1mL = {0.5mL}

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