NAME: ________________________

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5 Written Questions

5 Matching Questions

  1. what is the ratio for dry gum and wet gum?
  2. what is reverse osmosis?
  3. How many components are required to make an emulsion and what are they?
  4. which type of water is best for preparing parenteral solutions?
  5. Define: Levigation
  1. a Adding an insoluble substance to a powder while its wet is called levigation
  2. b water for injection USP
  3. c Opposite of osmosis using high pressure to move from region of high solvent concentration to region of low solvent concentration.
  4. d water:oil:emulsifying agent (eg. acacia)
  5. e ...dunno

5 Multiple Choice Questions

  1. 1. water washable bases
    2. Oleaginous/hydrocarbon/oil bases
    3.Emulsion bases
  2. the near saturation of syrups prevent microbial growth thereby no parabens are needed as antimicrobials
  3. A concentrated alcohol solution of a vegetable drug of such strength that 1mL= one gram of the dry form of the drug
  4. Its a variation of dry gum: oil:water:acacia
    3;2;1 or 2:1;1
  5. 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

  1. 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

          

  2. why is using distilled water to prepare injections WRONG and DANGEROUS?It contains pyrogens which are microbial compounds increase body temperature.

          

  3. 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.

          

  4. Define: humectant and give 2 examples.Adding an insoluble substance to a powder while its wet is called levigation

          

  5. what is the difference between water-oil/oil-water emulsions?wet gum= adding water to acacia
    dry gum = adding oil to acacia

          

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