When flushing a peripheral IV catheter, the LVN should

Rationale: A. Use force if resistance is met is incorrect because forcing fluid can damage the vein, dislodge the catheter, or cause infiltration or extravasation. Resistance may indicate occlusion, clot formation, or kinking of the line, and forcing the flush is unsafe. B. Stop if resistance or pain occurs is correct. The LVN should stop flushing immediately if the patient reports pain or if there is resistance. This prevents vein damage, infiltration, or catheter complications. After stopping, the nurse should assess the IV line, check for kinks, or notify the provider if the line cannot be flushed safely. C. Flush rapidly to clear the line is incorrect because rapid flushing can injure the vein or cause discomfort, especially in fragile veins or pediatric/geriatric patients. Flushing should be gentle and controlled to maintain vein integrity. D. Flush only after medication administration is incorrect because peripheral IV catheters should be flushed both before and after medication administration. Flushing before ensures line patency and prevents medication incompatibility, while flushing after ensures the full dose is delivered and clears the line.