Master the Complex Care Challenge 2026 – Empower Your Nursing Skills!

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If the patient in shock is to receive 1000 mL of normal saline in 2 hours, at what rate should the infusion pump be set?

500 mL per hour

Infusion rate equals total volume divided by total time. Delivering 1000 mL over 2 hours means 1000 ÷ 2 = 500 mL per hour. Setting the pump to 500 mL/hr will administer the full 1000 mL in the 2-hour window. Going faster would finish sooner (e.g., 1000 mL/hr in 1 hour), and slower would take longer (e.g., 250 mL/hr in 4 hours; 750 mL/hr in about 1 hour and 20 minutes). So the correct rate is 500 mL per hour.

250 mL per hour

1000 mL per hour

750 mL per hour