Question 1

Order: Dopamine 5 mcg/kg/min IV. Patient weighs 80 kg. Available: 400 mg in 250 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

15 mL/hr. Dose per hour: 5 × 80 × 60 = 24,000 mcg/hr. Concentration: 400 mg/250 mL = 1,600 mcg/mL. Divide: 24,000 ÷ 1,600 = 15 mL/hr.

Question 2

Order: Dopamine 10 mcg/kg/min IV. Patient weighs 70 kg. Available: 400 mg in 250 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

26.3 mL/hr. Dose per hour: 10 × 70 × 60 = 42,000 mcg/hr. Concentration: 400 mg/250 mL = 1,600 mcg/mL. Divide: 42,000 ÷ 1,600 = 26.25 mL/hr.

Question 3

Order: Dobutamine 5 mcg/kg/min IV. Patient weighs 60 kg. Available: 250 mg in 250 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

18 mL/hr. Dose per hour: 5 × 60 × 60 = 18,000 mcg/hr. Concentration: 250 mg/250 mL = 1,000 mcg/mL. Divide: 18,000 ÷ 1,000 = 18 mL/hr.

Question 4

Order: Dopamine 8 mcg/kg/min IV. Patient weighs 75 kg. Available: 400 mg in 250 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

22.5 mL/hr. Dose per hour: 8 × 75 × 60 = 36,000 mcg/hr. Concentration: 400 mg/250 mL = 1,600 mcg/mL. Divide: 36,000 ÷ 1,600 = 22.5 mL/hr.

Question 5

Order: Dobutamine 10 mcg/kg/min IV. Patient weighs 80 kg. Available: 500 mg in 250 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

24 mL/hr. Dose per hour: 10 × 80 × 60 = 48,000 mcg/hr. Concentration: 500 mg/250 mL = 2,000 mcg/mL. Divide: 48,000 ÷ 2,000 = 24 mL/hr.

Question 6

Order: Dopamine 3 mcg/kg/min IV. Patient weighs 90 kg. Available: 400 mg in 250 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

10.1 mL/hr. Dose per hour: 3 × 90 × 60 = 16,200 mcg/hr. Concentration: 400 mg/250 mL = 1,600 mcg/mL. Divide: 16,200 ÷ 1,600 = 10.125 mL/hr.

Question 7

Order: Dobutamine 7.5 mcg/kg/min IV. Patient weighs 64 kg. Available: 250 mg in 250 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

28.8 mL/hr. Dose per hour: 7.5 × 64 × 60 = 28,800 mcg/hr. Concentration: 250 mg/250 mL = 1,000 mcg/mL. Divide: 28,800 ÷ 1,000 = 28.8 mL/hr.

Question 8

Order: Dopamine 6 mcg/kg/min IV. Patient weighs 50 kg. Available: 400 mg in 250 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

11.3 mL/hr. Dose per hour: 6 × 50 × 60 = 18,000 mcg/hr. Concentration: 400 mg/250 mL = 1,600 mcg/mL. Divide: 18,000 ÷ 1,600 = 11.25 mL/hr.

Question 9

Order: Dobutamine 2.5 mcg/kg/min IV. Patient weighs 88 kg. Available: 250 mg in 250 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

13.2 mL/hr. Dose per hour: 2.5 × 88 × 60 = 13,200 mcg/hr. Concentration: 250 mg/250 mL = 1,000 mcg/mL. Divide: 13,200 ÷ 1,000 = 13.2 mL/hr.

Question 10

Order: Dopamine 4 mcg/kg/min IV. Patient weighs 65 kg. Available: 400 mg in 500 mL. At what rate (mL/hr) should the pump run? (Round to 1 decimal if needed)

Accepted Answer

19.5 mL/hr. Dose per hour: 4 × 65 × 60 = 15,600 mcg/hr. Concentration: 400 mg/500 mL = 800 mcg/mL. Divide: 15,600 ÷ 800 = 19.5 mL/hr.

Weight-Based Dosage Calculation Practice (mg/kg & mcg/kg/min)

Try 10 practice questions

60 more weight-based dosing questions in the app

All practice topics