5 Written Questions
5 Matching Questions
- what is the ratio for dry gum and wet gum?
- what is reverse osmosis?
- How many components are required to make an emulsion and what are they?
- which type of water is best for preparing parenteral solutions?
- Define: Levigation
- a Adding an insoluble substance to a powder while its wet is called levigation
- b water for injection USP
- c Opposite of osmosis using high pressure to move from region of high solvent concentration to region of low solvent concentration.
- d water:oil:emulsifying agent (eg. acacia)
- e ...dunno
5 Multiple Choice Questions
- 1. water washable bases
2. Oleaginous/hydrocarbon/oil bases
- the near saturation of syrups prevent microbial growth thereby no parabens are needed as antimicrobials
- A concentrated alcohol solution of a vegetable drug of such strength that 1mL= one gram of the dry form of the drug
- Its a variation of dry gum: oil:water:acacia
3;2;1 or 2:1;1
- Tincture is an alcoholic or hydroalcoholic solution of chemicals or soluble constituents of vegetable drugs.
Tinctures must be keep away from light and heat
5 True/False Questions
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
why is using distilled water to prepare injections WRONG and DANGEROUS? → It contains pyrogens which are microbial compounds increase body temperature.
what is the use of emulsifying agents? → Opposite of osmosis using high pressure to move from region of high solvent concentration to region of low solvent concentration.
Define: humectant and give 2 examples. → Adding an insoluble substance to a powder while its wet is called levigation
what is the difference between water-oil/oil-water emulsions? → wet gum= adding water to acacia
dry gum = adding oil to acacia