During a downstream occlusion of an IV line, what is the initial step?

• A. Restart the infusion after confirming the line is clear
• B. Call the physician to request a new IV
• C. Check the tubing for kinks or blockages downstream of the pump
• D. Stop the infusion and remove the catheter

Answer: (C)

When an IV pump shows an occlusion, the first thing to do is inspect the tubing for simple mechanical causes of blocked flow, especially downstream of the pump. Many occlusions come from something as straightforward as a kink, twist, collapsed tubing, or a closed/clamped segment after the pump. Straightening the tubing, releasing any pinch points, and ensuring clamps are open often restores patency without needing to escalate.

As you check, look for twists under the bed or around the IV pole, connections that may have come loose, and whether the line is properly primed with solution. Make sure the catheter site isn’t causing the blockage by swelling or clotting, but prioritize the mechanical check of the downstream tubing first. Once you identify and correct a simple obstruction, you can restart the infusion and monitor for recurrence. If the problem persists after clearing obvious mechanical issues, escalate as needed.