Question

a pharmacy technician receives a prescription for cyclophosphamide 5 mg/m2 qd. the patient’s body surface area (bsa) is 0.82 m2. which of the following is the dosage amount in mg?

○ 25 mg
○ 4.1 mg
○ 16 mg
○ 5.82 mg

question 40
1 point
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?

Explanation:

First Sub - Question (Cyclophosphamide Dosage)

Step1: Recall the dosage formula

The dosage amount (in mg) is calculated by multiplying the dosage per body surface area (in mg/m²) by the patient's body surface area (in m²). The formula is: Dosage = Dosage per m² × BSA.
Here, the dosage per m² is $5\space mg/m^{2}$ and the BSA is $0.82\space m^{2}$.

Step2: Calculate the dosage

Substitute the values into the formula: Dosage = $5\space mg/m^{2}×0.82\space m^{2}$.
When we multiply 5 and 0.82, we get $5\times0.82 = 4.1\space mg$.

Step1: Understand the prescription instructions

"po tid" means "by mouth three times a day". The prescription is for 1 capsule per dose, three times a day, for 7 days.

Step2: Calculate the total number of capsules

First, find the number of capsules per day: 1 capsule per dose × 3 doses per day = 3 capsules per day.
Then, find the total number of capsules for 7 days: 3 capsules per day × 7 days = 21 capsules.

Answer:

4.1 mg (corresponding to the option "4.1 mg")

Second Sub - Question (Capsule Dispensing)