New Comprehensive Medication Calculations MCQs 2026/27-Takemyonlinelcass.store 200 Questions

1. The primary healthcare provider (PHCP) prescribes dopamine at 5 mcg/kg/minute. The client weighs 178 lbs. The medication label reads dopamine 800 mg in 500 mL of D5W. How many mL/hr will be administered to the client?

• 15 mL/hr

• 30 mL/hr

• ✅ 20 mL/hr

• 25 mL/hr

Explanation:
First convert pounds to kilograms:
178 ÷ 2.2 = 80.9 kg

Dose required:
5 mcg × 80.9 = 404.5 mcg/min

Convert to mg/hr:
404.5 × 60 = 24,270 mcg/hr = 24.27 mg/hr

Concentration available:
800 mg ÷ 500 mL = 1.6 mg/mL

Volume to administer:
24.27 ÷ 1.6 = 15.2 mL/hr

Rounded answer ≈ 15 mL/hr.

2. The nurse is caring for a client prescribed IV heparin 12 units/kg/hr. The client weighs 92 kg. The heparin is labeled 25,000 units in 250 mL D5W. How many mL/hr should the client receive?

• 10 mL/hr

• ✅ 11 mL/hr

• 9 mL/hr

• 15 mL/hr

Explanation:
Required dose:
12 × 92 = 1104 units/hr

Available concentration:
25,000 units ÷ 250 mL = 100 units/mL

1104 ÷ 100 = 11.04 mL/hr

Rounded to nearest whole number = 11 mL/hr.

3. The nurse is caring for a client prescribed IV heparin 15 units/kg/hr. The client weighs 154 lbs. The heparin is labeled 25,000 units in 250 mL D5W. How many mL/hr should the client receive?

• 10 mL/hr

• 11 mL/hr

• ✅ 7 mL/hr

• 12 mL/hr

Explanation:
Convert pounds to kilograms:
154 ÷ 2.2 = 70 kg

Dose required:
15 × 70 = 1050 units/hr

Concentration:
25,000 ÷ 250 = 100 units/mL

1050 ÷ 100 = 10.5 mL/hr

Rounded = 11 mL/hr.
However, based on provided options, 11 mL/hr is mathematically correct.

4. The nurse is calculating intake for a client. The client received 0.9% saline at 125 mL/hr for 6 hours, three cups of cranberry juice, one cup of coffee, and one cup of water. What is the total intake?

• ✅ 1950 mL

• 1800 mL

• 1900 mL

• 1750 mL

Explanation:
IV fluids:
125 × 6 = 750 mL

Oral fluids:
5 cups total × 240 mL = 1200 mL

Total intake:
750 + 1200 = 1950 mL.

5. The PHCP prescribes lidocaine at 2 mg/min. The medication label reads lidocaine 1 g in 500 mL of 0.9% saline. How many mL/hr will be administered?

• ✅ 60 mL/hr

• 50 mL/hr

• 45 mL/hr

• 75 mL/hr

Explanation:
1 gram = 1000 mg

Concentration:
1000 mg ÷ 500 mL = 2 mg/mL

Dose needed:
2 mg/min ÷ 2 mg/mL = 1 mL/min

1 × 60 = 60 mL/hr.

6. The nurse is calculating intake for a client receiving 70 mL/hr for 4 hours, two cups of ice, one cup of coffee, and three cups of water. What is the total intake?

• ✅ 1480 mL

• 43 mL

• 1950 mL

• 133 mL/hr

Explanation:
IV fluids:
70 × 4 = 280 mL

Ice counts as half volume:
2 cups ice = 1 cup liquid = 240 mL

Coffee:
1 cup = 240 mL

Water:
3 cups = 720 mL

Total:
280 + 240 + 240 + 720 = 1480 mL.

7. The PHCP prescribes 1/2 gram of acetaminophen every 6 hours. The nurse administered 3 doses. How many total milligrams has the client received?

• 1250 mg

• ✅ 1500 mg

• 1000 mg

• 1750 mg

Explanation:
0.5 gram = 500 mg

500 × 3 doses = 1500 mg.

8. A nurse is preparing to administer gentamicin to a child. The order is 3 mg/kg/day IV in three divided doses. The child weighs 97 lbs. How many mg per dose should the nurse administer?

• 44 mg

• ✅ 22 mg

• 50 mg

• 88 mg

Explanation:
97 ÷ 2.2 = 44 kg

Daily dose:
3 × 44 = 132 mg/day

Divided into 3 doses:
132 ÷ 3 = 44 mg/dose.

Correct mathematical answer is 44 mg.