
Preservatives
Authored by Atiqah Mohtar
Science
University
Used 60+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Select an appropriate answer to fill in the blanks.
________ is an introduction of microorganisms into a product, which leads to product's ________.
spoilage, contamination
contamination, spoilage
contamination, preservation
spoilage, preservation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Select an appropriate answer to fill in the blank.
Solubility of a preservative in a pharmaceutical product ______ exceeds its minimum inhibitory concentration (MIC) in the product pH range.
should
should not
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a source of microbial contamination in an emulsion?
Bench surfaces
Poorly processed acacia powder
Freshly prepared distilled water
Cough droplets from the personnel
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following classes of preservative is/are not suitable to be used with negatively charged excipients?
i. Biguanides
ii. Quaternary ammonium compounds
iii. Alcohols
iv. Organic acids
i only
i and ii only
iii and iv only
i, ii and iii only
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following dosage forms may NOT NEED a preservative if intended for a longer duration of usage?
i. Cream
ii. Ointment
iii. A very concentrated syrup
iv. Antibiotic suspension
v. Glycerogelatin-based suppository
i only
ii and iii only
i, ii and iii only
ii, iii and iv only
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Preservative(s) should be added into a pharmaceutical product to mask any deficiency in the manufacturing process.
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Preservative Efficacy Test (PET) is important as a routine quality control check of pharmaceutical products.
True
False
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