Question

a pharmacy technician receives a prescription for acetaminophen (tylenol) for a patient who weighs 18 lb. the technician should identify that which of the following is the patients weight in kg?

36 kg
8.2 kg
39.6 kg
9 kg

Explanation:

Identify the conversion factor

Using the Pharmacy Calculations knowledge point

$$ 1\text{ kg} = 2.2\text{ lb} $$

Convert pounds to kilograms

Using the Pharmacy Calculations knowledge point

$$ \text{Weight in kg} = \frac{18\text{ lb}}{2.2\text{ lb/kg}} \approx 8.18\text{ kg} $$

Round to the nearest tenth

Using the Pharmacy Calculations knowledge point

$$ 8.18\text{ kg} \approx 8.2\text{ kg} $$

Answer:

• (A) 36 kg
• (B) 8.2 kg (Correct answer)
• (C) 39.6 kg
• (D) 9 kg