WGU D441 NURS 2001 Medical Dosage Calculations & Pharmacology OA READINESS EXAM GUIDE Q & S 2025/2026

1. A patient is prescribed 2 mg of Morphine IV every 4
hours for pain. If the medication is supplied in a
concentration of 4 mg/mL, how many mL should the nurse
administer per dose?
 A. 0.25 mL
 B. 0.5 mL
 C. 1 mL
 D. 2 mL
 Answer: B. 0.5 mL

 Rationale: \[2 \text{ mg} \div 4 \text{ mg/mL} = 0.5 \text{
mL}\]
2. A patient weighs 70 kg and is to receive a medication
dosed at 5 mg/kg/day, administered in two divided doses.
What is the dose per administration?
 A. 175 mg
 B. 87.5 mg
 C. 350 mg
 D. 70 mg
 Answer: A. 175 mg

 Rationale: \(70 \text{ kg} \times 5 \text{ mg/kg/day} =
350 \text{ mg/day}\) and \(\frac{350 \text{ mg}}{2} = 175
\text{ mg}\)
3. A medication is ordered to be given at 1.5 mg/kg. The
patient's weight is 80 pounds. How many mg should be
administered? (1 kg = 2.2 pounds)
 A. 54.5 mg