,WGU D441 Medical Dosage Calculations & Pharmacology Objective
Assessment | Questions & Answers 2026/2027
1.** A patient weighs 176 lb. What is this weight in kilograms? (Round to the
nearest tenth.)
A) 78.0 kg
B) 80.0 kg
C) 82.5 kg
D) 85.0 kg
**Correct Answer:** B) 80.0 kg
**Rationale:** 1 kg = 2.2 lb. 176 ÷ 2.2 = 80.0 kg. Weight-based dosing
requires accurate conversion between pounds and kilograms; rounding to the
nearest tenth is standard for medication calculations.
---
**2.** How many milligrams are in 0.75 grams?
A) 7.5 mg
B) 75 mg
C) 750 mg
D) 7,500 mg
**Correct Answer:** C) 750 mg
,**Rationale:** 1 g = 1,000 mg. 0.75 g × 1,000 = 750 mg. Converting
between grams and milligrams is a fundamental skill for medication
administration.
---
**3.** A medication is available as 0.25 mg per tablet. How many
micrograms are in each tablet?
A) 25 mcg
B) 250 mcg
C) 2,500 mcg
D) 25,000 mcg
**Correct Answer:** B) 250 mcg
**Rationale:** 1 mg = 1,000 mcg. 0.25 mg × 1,000 = 250 mcg. Microgram-
to-milligram conversions are essential for medications like levothyroxine,
digoxin, and fentanyl.
---
**4.** The nurse needs to administer 1.5 L of IV fluid. How many milliliters is
this?
A) 150 mL
B) 1,500 mL
C) 15,000 mL
D) 150,000 mL
, **Correct Answer:** B) 1,500 mL
**Rationale:** 1 L = 1,000 mL. 1.5 L × 1,000 = 1,500 mL. Liter-to-milliliter
conversions are used for IV fluid volumes and large-volume parenterals.
---
**5.** A patient's intake is documented as 8 oz of water. How many milliliters
did the patient drink?
A) 120 mL
B) 180 mL
C) 240 mL
D) 300 mL
**Correct Answer:** C) 240 mL
**Rationale:** 1 oz = 30 mL. 8 oz × 30 = 240 mL. This conversion is used for
oral fluid intake documentation and medication administration (liquid
medications are often measured in ounces).
---
**6.** Convert 5,000 mcg to milligrams.
A) 0.5 mg
B) 5 mg
Assessment | Questions & Answers 2026/2027
1.** A patient weighs 176 lb. What is this weight in kilograms? (Round to the
nearest tenth.)
A) 78.0 kg
B) 80.0 kg
C) 82.5 kg
D) 85.0 kg
**Correct Answer:** B) 80.0 kg
**Rationale:** 1 kg = 2.2 lb. 176 ÷ 2.2 = 80.0 kg. Weight-based dosing
requires accurate conversion between pounds and kilograms; rounding to the
nearest tenth is standard for medication calculations.
---
**2.** How many milligrams are in 0.75 grams?
A) 7.5 mg
B) 75 mg
C) 750 mg
D) 7,500 mg
**Correct Answer:** C) 750 mg
,**Rationale:** 1 g = 1,000 mg. 0.75 g × 1,000 = 750 mg. Converting
between grams and milligrams is a fundamental skill for medication
administration.
---
**3.** A medication is available as 0.25 mg per tablet. How many
micrograms are in each tablet?
A) 25 mcg
B) 250 mcg
C) 2,500 mcg
D) 25,000 mcg
**Correct Answer:** B) 250 mcg
**Rationale:** 1 mg = 1,000 mcg. 0.25 mg × 1,000 = 250 mcg. Microgram-
to-milligram conversions are essential for medications like levothyroxine,
digoxin, and fentanyl.
---
**4.** The nurse needs to administer 1.5 L of IV fluid. How many milliliters is
this?
A) 150 mL
B) 1,500 mL
C) 15,000 mL
D) 150,000 mL
, **Correct Answer:** B) 1,500 mL
**Rationale:** 1 L = 1,000 mL. 1.5 L × 1,000 = 1,500 mL. Liter-to-milliliter
conversions are used for IV fluid volumes and large-volume parenterals.
---
**5.** A patient's intake is documented as 8 oz of water. How many milliliters
did the patient drink?
A) 120 mL
B) 180 mL
C) 240 mL
D) 300 mL
**Correct Answer:** C) 240 mL
**Rationale:** 1 oz = 30 mL. 8 oz × 30 = 240 mL. This conversion is used for
oral fluid intake documentation and medication administration (liquid
medications are often measured in ounces).
---
**6.** Convert 5,000 mcg to milligrams.
A) 0.5 mg
B) 5 mg
