The purpose of flushing an IV line before and after IV medication administration is to:

Rationale: A. Improving venous circulation is not the purpose of flushing. Flushing does not enhance blood flow; it is a procedural step to maintain IV line patency and medication safety. B. Reducing client discomfort may occur indirectly if the line is patent and medication flows smoothly, but it is not the primary reason for flushing. C. Increasing medication absorption is incorrect. IV medications are delivered directly into the bloodstream, so absorption is not an issue. Flushing does not enhance absorption; it ensures that the full dose reaches the circulation. D. Preventing medication incompatibility and ensuring delivery is correct. Flushing the IV line before medication administration confirms the line is patent and ready for infusion. Flushing after administration clears the line of residual medication, preventing mixing with incompatible drugs and ensuring the entire dose is delivered to the client. This practice helps avoid adverse reactions, occlusion, or incomplete dosing, which are critical for patient safety and therapeutic effectiveness.