All Free Nursing Pharmacology MCQs with Answers
Every Nursing Pharmacology question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
450 questions · page 9 of 23
- A. 1 tablet
- B. 2 tablets
- C. 3 tablets
- D. 4 tablets
Explanation: First convert 0.4 mg to 400 micrograms. Then divide 400 micrograms by 200 micrograms per tablet, giving 2 tablets.
Correct answer: 2 tablets- A. 4.5 mL
- B. 5 mL
- C. 5.5 mL
- D. 6 mL
Explanation: The daily dose is 24 × 22 = 528 mg. Each dose is 528 ÷ 4 = 132 mg, and 132 × 5 ÷ 120 = 5.5 mL.
Correct answer: 5.5 mL- A. 1 g
- B. 4 g
- C. 8 g
- D. 10 g
Explanation: A 4% w/v solution contains 4 g in every 100 mL. For 250 mL, the amount is 4 × 250 ÷ 100 = 10 g.
Correct answer: 10 g- A. 2 mL
- B. 2.5 mL
- C. 3 mL
- D. 4 mL
Explanation: The concentration is 1,000 mg ÷ 5 mL = 200 mg/mL. The required volume is 600 mg ÷ 200 mg/mL = 3 mL.
Correct answer: 3 mL- A. 0.1 mg/mL
- B. 1 mg/mL
- C. 10 mg/mL
- D. 100 mg/mL
Explanation: A 1:1,000 ratio means 1 g in 1,000 mL. Converting 1 g to 1,000 mg gives 1,000 mg ÷ 1,000 mL = 1 mg/mL.
Correct answer: 1 mg/mL- A. 180 mL/hour
- B. 216 mL/hour
- C. 288 mL/hour
- D. 360 mL/hour
Explanation: Thirty-six drops in 30 seconds equals 72 drops per minute. The rate is 72 ÷ 15 = 4.8 mL/minute, and 4.8 × 60 = 288 mL/hour.
Correct answer: 288 mL/hour- A. 7 hours 40 minutes
- B. 8 hours 20 minutes
- C. 8 hours 40 minutes
- D. 9 hours 20 minutes
Explanation: The remaining volume is 1,000 − 350 = 650 mL. At 75 mL/hour, 650 ÷ 75 = 8.67 hours, which is 8 hours and 40 minutes.
Correct answer: 8 hours 40 minutes- A. 0.68 mL
- B. 1.02 mL
- C. 1.5 mL
- D. 10.2 mL
Explanation: The prescribed dose is 0.15 × 68 = 10.2 mg. At 10 mg/mL, the volume is 10.2 ÷ 10 = 1.02 mL.
Correct answer: 1.02 mL- A. 0.75 mL
- B. 1 mL
- C. 1.5 mL
- D. 2.5 mL
Explanation: The concentration is 25,000 ÷ 5 = 5,000 units/mL. The required volume is 7,500 ÷ 5,000 = 1.5 mL.
Correct answer: 1.5 mL- A. 20 mL
- B. 22 mL
- C. 200 mL
- D. 220 mL
Explanation: The prescribed amount is 220 mL, so the nurse measures to the 220 mL mark.
Correct answer: 220 mL- A. 1 mL
- B. 2 mL
- C. 4 mL
- D. 5 mL
Explanation: First convert weight: 44 lb ÷ 2.2 = 20 kg. The required dose is 20 × 5 = 100 mg, and 100 mg ÷ 50 mg/mL = 2 mL.
Correct answer: 2 mL- A. 0.5 tablet
- B. 1 tablet
- C. 1.5 tablets
- D. 2 tablets
Explanation: Use the formula prescribed dose ÷ available dose: 750 mg ÷ 500 mg = 1.5 tablets.
Correct answer: 1.5 tablets- A. 30 drops/minute
- B. 40 drops/minute
- C. 50 drops/minute
- D. 60 drops/minute
Explanation: Apply the formula: 1,200 mL × 20 drops/mL ÷ 600 minutes = 40 drops/minute. The 10-hour infusion must first be converted to 600 minutes.
Correct answer: 40 drops/minute- A. 8 hours
- B. 10 hours
- C. 12 hours
- D. 15 hours
Explanation: Time equals total volume ÷ hourly rate: 1,500 mL ÷ 125 mL/hour = 12 hours. This calculation assumes the prescribed rate remains constant.
Correct answer: 12 hours- A. 5 mL
- B. 8 mL
- C. 10 mL
- D. 12 mL
Explanation: The daily dose is 18 × 30 = 540 mg, so each of three doses is 180 mg. Since 90 mg is in 5 mL, 180 mg requires 10 mL.
Correct answer: 10 mL- A. 0.45 g
- B. 4.5 g
- C. 9 g
- D. 45 g
Explanation: A 0.9% w/v solution contains 0.9 g in each 100 mL. For 500 mL, 0.9 × 5 = 4.5 g.
Correct answer: 4.5 g- A. 0.25 mL
- B. 0.5 mL
- C. 1 mL
- D. 2 mL
Explanation: Volume equals prescribed dose ÷ concentration: 75 micrograms ÷ 150 micrograms/mL = 0.5 mL.
Correct answer: 0.5 mL- A. 10 mL
- B. 12 mL
- C. 15 mL
- D. 20 mL
Explanation: Use 375 mg × 10 mL ÷ 250 mg = 15 mL. The available concentration is used rather than treating the prescribed milligram dose as a volume.
Correct answer: 15 mL- A. 150 mL/hour
- B. 180 mL/hour
- C. 200 mL/hour
- D. 225 mL/hour
Explanation: The pump rate is total volume ÷ time: 900 mL ÷ 5 hours = 180 mL/hour. This uses an electronic pump, so a drop factor is not needed.
Correct answer: 180 mL/hour- A. 0.65 mL
- B. 1.0 mL
- C. 1.3 mL
- D. 2.6 mL
Explanation: The concentration is 2,000 units ÷ 4 mL = 500 units/mL. The required volume is 650 units ÷ 500 units/mL = 1.3 mL.
Correct answer: 1.3 mL