When flushing a peripheral IV catheter, the LVN should:

Rationale: A. Flushing only after medication administration is incorrect. Peripheral IV catheters should be flushed before and after medication administration to ensure the line is patent, to clear residual medication, and to prevent mixing incompatible drugs. Flushing only afterward does not verify patency prior to infusion. B. Flushing rapidly to clear the line is unsafe. Rapid flushing can cause vein irritation, pain, or damage, especially in fragile veins. Flushing should be done using gentle, steady pressure to maintain vein integrity and prevent complications. C. Using force if resistance is met is incorrect and dangerous. Forcing fluid into a resistant line can lead to catheter dislodgement, vein rupture, infiltration, or embolism. Resistance indicates a potential blockage or vein complication that must be addressed safely. D. Stopping if resistance or pain occurs is correct. Resistance or client discomfort during flushing may indicate occlusion, infiltration, or thrombosis. The LVN should stop the flush immediately, assess the site, and follow facility protocol before attempting further interventions. This action prioritizes patient safety and prevents complications.