Pharmacy Calculations & Sig Codes — Pharmacy Technician Practice Test
50 questions in this topic · 30 drawn at random this round
What does 'po' mean as a route of administration?
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This Pharmacy Technician Pharmacy Calculations & Sig Codes practice set has 50 practice questions based on the official exam materials, each with an instant explanation.
Sample questions
Three questions from the Pharmacy Calculations & Sig Codes bank with the correct answer and an explanation. The practice quiz above draws 30 questions at random from the same bank.
An amoxicillin suspension is 250 mg per 5 mL. How many mL are needed to give a 400 mg dose?
- 8 mL — Correct answer
- 10 mL
- 5 mL
- 12.5 mL
Explanation: Set up a proportion: 250 mg / 5 mL = 400 mg / x mL. Cross-multiply: 250x = 400 × 5 = 2000, so x = 2000 / 250 = 8 mL. (Source: PTCE Domain 4.1 — calculations, ratio & proportion)
Handbook: Pharmacy Calculations — Ratio & Proportion
A prescription is for 60 capsules with the directions 'take 1 capsule by mouth twice daily.' What is the days supply?
- 30 days — Correct answer
- 60 days
- 20 days
- 15 days
Explanation: Twice daily means 2 capsules per day. Days supply = total quantity / daily dose = 60 / 2 = 30 days. (Source: PTCE Domain 4.1 — days supply)
Handbook: Pharmacy Calculations — Days Supply
How many grams of dextrose are in 1000 mL of D5W (5% weight/volume)?
- 50 g — Correct answer
- 5 g
- 500 g
- 100 g
Explanation: A 5% w/v solution has 5 g per 100 mL. For 1000 mL: 5 g / 100 mL × 1000 mL = 50 g. (Source: PTCE Domain 4.1 — percentage strength)
Handbook: Pharmacy Calculations — Percentage Strength