The primary purpose of using an IV infusion pump is to:

Rationale: A. Eliminate the need for calculations is incorrect because even with an infusion pump, the nurse must program the correct rate and total volume, which requires accurate calculations. The pump assists with precision, but it does not remove the need for clinical judgment or math. B. Control the rate and volume of infusion is correct. IV infusion pumps allow precise regulation of fluid or medication delivery, which is especially important for critical medications, pediatric patients, or patients requiring exact dosing. Pumps help prevent under- or over-infusion, ensuring safe and consistent therapy. C. Increase client comfort is incorrect because although controlled infusion may be more comfortable than manual regulation, comfort is not the primary purpose of the pump. Its main role is safety and accuracy in fluid administration. D. Reduce the risk of infection is incorrect because the pump itself does not prevent infection. Infection control depends on aseptic technique, proper catheter care, and site monitoring, not the use of an infusion pump.