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 10 of 23
- A. 2.8 mL
- B. 3.0 mL
- C. 3.5 mL
- D. 4.0 mL
Explanation: First calculate the concentration: 80 mg ÷ 2 mL = 40 mg/mL. Then calculate 140 mg ÷ 40 mg/mL = 3.5 mL.
Correct answer: 3.5 mL- A. 0.8 micrograms
- B. 8 micrograms
- C. 80 micrograms
- D. 800 micrograms
Explanation: One milligram equals 1,000 micrograms, so 0.08 mg × 1,000 = 80 micrograms.
Correct answer: 80 micrograms- A. 4.5 mL
- B. 6 mL
- C. 9 mL
- D. 18 mL
Explanation: The daily dose is 12 kg × 18 mg = 216 mg. Each of two doses is 108 mg, and the concentration is 60 mg ÷ 5 mL = 12 mg/mL.
Correct answer: 9 mL- A. 8 hours
- B. 10 hours
- C. 12 hours
- D. 14 hours
Explanation: Infusion time equals total volume ÷ hourly rate. The calculation is 1,440 mL ÷ 120 mL/hour = 12 hours.
Correct answer: 12 hours- A. 0.24 g
- B. 2.4 g
- C. 24 g
- D. 240 g
Explanation: A 3% w/v solution contains 3 g in every 100 mL. For 80 mL, the calculation is 3 g × 80 ÷ 100 = 2.4 g. The percentage is not 3 g per 1 mL.
Correct answer: 2.4 g- A. 12 mg
- B. 20 mg
- C. 24 mg
- D. 60 mg
Explanation: One gram equals 1,000 mg, so the concentration is 1,000 mg ÷ 500 mL = 2 mg/mL. In 12 mL, the amount is 12 × 2 = 24 mg.
Correct answer: 24 mg- A. 1.2 mL
- B. 1.5 mL
- C. 1.7 mL
- D. 2.0 mL
Explanation: The concentration after reconstitution is 750 mg ÷ 3 mL = 250 mg/mL. The required volume is 425 mg ÷ 250 mg/mL = 1.7 mL.
Correct answer: 1.7 mL- A. 0.72 mL
- B. 1.08 mL
- C. 1.44 mL
- D. 2.88 mL
Explanation: The prescribed dose is 72 kg × 0.08 mg/kg = 5.76 mg. At a concentration of 4 mg/mL, the volume is 5.76 mg ÷ 4 mg/mL = 1.44 mL.
Correct answer: 1.44 mL- A. Two tablets
- B. Three tablets
- C. Four tablets
- D. Five tablets
Explanation: First convert 1.2 g to 1,200 mg. Then divide 1,200 mg by 400 mg per tablet, giving 3 tablets.
Correct answer: Three tablets- A. 0.5 mL
- B. 1 mL
- C. 1.5 mL
- D. 2 mL
Explanation: Use the formula: volume = prescribed dose divided by available dose, multiplied by available volume. Thus, 2.5 mg ÷ 5 mg × 2 mL = 1 mL.
Correct answer: 1 mL- A. 8.4 mL
- B. 10.2 mL
- C. 11.2 mL
- D. 12.4 mL
Explanation: Convert the weight first: 154 lb ÷ 2.2 = 70 kg. The required dose is 70 × 4 = 280 mg, and 280 mg ÷ 25 mg/mL = 11.2 mL.
Correct answer: 11.2 mL- A. 0.3 g
- B. 3 g
- C. 30 g
- D. 300 g
Explanation: A 5% w/v solution contains 5 g in every 100 mL. Therefore, 5 g × 60 ÷ 100 = 3 g in 60 mL.
Correct answer: 3 g- A. 0.32 mg
- B. 3.2 mg
- C. 32 mg
- D. 320 mg
Explanation: One gram equals 1,000 mg, so the concentration is 1,000 mg ÷ 2,500 mL = 0.4 mg/mL. In 8 mL, the amount is 0.4 × 8 = 3.2 mg.
Correct answer: 3.2 mg- A. 30 drops per minute
- B. 35 drops per minute
- C. 40 drops per minute
- D. 45 drops per minute
Explanation: Use: drops per minute = volume × drop factor ÷ time in minutes. The calculation is 840 × 20 ÷ 420 minutes = 40 drops per minute.
Correct answer: 40 drops per minute- A. 4 hours
- B. 5 hours
- C. 6 hours
- D. 7 hours
Explanation: Infusion time equals total volume divided by the hourly rate: 750 mL ÷ 125 mL/hour = 6 hours.
Correct answer: 6 hours- A. 2 mL
- B. 3 mL
- C. 4 mL
- D. 5 mL
Explanation: The required dose is 16 kg × 8 mg/kg = 128 mg. The liquid provides 160 mg in 5 mL, so 128 ÷ 160 × 5 = 4 mL.
Correct answer: 4 mL- A. 1.5 mL
- B. 2 mL
- C. 2.5 mL
- D. 3 mL
Explanation: The concentration after reconstitution is 600 mg ÷ 4 mL = 150 mg/mL. The required volume is 375 mg ÷ 150 mg/mL = 2.5 mL.
Correct answer: 2.5 mL- A. 1 mL
- B. 1.5 mL
- C. 2 mL
- D. 2.5 mL
Explanation: The vial contains 1,200,000 units ÷ 3 mL = 400,000 units/mL. Therefore, 800,000 units ÷ 400,000 units/mL = 2 mL.
Correct answer: 2 mL- A. 0.018 mL
- B. 0.18 mL
- C. 1.8 mL
- D. 18 mL
Explanation: Use the formula: volume = prescribed dose ÷ concentration. Thus, 18 units ÷ 100 units/mL = 0.18 mL.
Correct answer: 0.18 mL- A. 5.63 mL/hour
- B. 11.25 mL/hour
- C. 18.75 mL/hour
- D. 22.50 mL/hour
Explanation: First calculate the dose: 5 micrograms × 60 kg = 300 micrograms/minute, or 18 mg/hour.
Correct answer: 11.25 mL/hour