Question

a pharmacy technician is preparing to dispense a prescription with the following instructions: \1 capsule po tid for 7 days.\ how many capsules should the technician dispense for this prescription?

7
14
42
21

Explanation:

Interpret the prescription abbreviations

Using the Pharmacy Calculations and Dosage Calculations knowledge points

• "1 capsule" is the dose quantity.
• "po" means by mouth (per os).
• "tid" means three times a day (ter in die).
• "for 7 days" is the duration of therapy.

Calculate the total quantity to dispense

Using the Dosage Calculations knowledge point

$$ \text{Daily Dose} = 1\text{ capsule} \times 3\text{ times/day} = 3\text{ capsules/day} $$

$$ \text{Total Quantity} = 3\text{ capsules/day} \times 7\text{ days} = 21\text{ capsules} $$

Answer:

• 7
• 14
• 42
• 21 (Correct answer)