5 Written questions
5 Matching questions
- which of the following types of water CANNOT be used for making injections?
a) sterile water for inhalation
b) bacteristatic water USP
c) water for injection USP
d) sterile water for irrigation USP
- How many components are required to make an emulsion and what are they?
- which type of water is best for preparing parenteral solutions?
- what is a fluid extract?
- what is reverse osmosis?
- a Ans: A and C
Note that only water for injection and bacteristatic water may be used
- b water:oil:emulsifying agent (eg. acacia)
- c Opposite of osmosis using high pressure to move from region of high solvent concentration to region of low solvent concentration.
- d A concentrated alcohol solution of a vegetable drug of such strength that 1mL= one gram of the dry form of the drug
- e water for injection USP
5 Multiple choice questions
- wet gum= adding water to acacia
dry gum = adding oil to acacia
- Ans: the difference is the dispersed phase/continuous phase
dispersed phase comes first
Water-oil: dispersed phase is water.
Oil-water: dispersed phase is oil
- multiple OH groups in alcohols
sorbitol and glycerin
- It prevents surface evaporation
5 True/False questions
What is a tincture? → Tincture is an alcoholic or hydroalcoholic solution of chemicals or soluble constituents of vegetable drugs.
Tinctures must be keep away from light and heat
what is the nacent method? → equal amounts of oil, water, acacia
what are the four types of bases used to make ointment? → they reduce the surface tension between the wate and oil and allow the two to mix.
which of the following types of water cannot be used to make parenteral & opthalmic solutions?
a) purified water
b) bacteristatic water → Ans: A do not use purified water for opthalmic solutions
Describe the anti-microbial properties of syrups. → Opposite of osmosis using high pressure to move from region of high solvent concentration to region of low solvent concentration.