When preparing to administer an intravenous medication through a central venous catheter, what is the proper procedure?

When preparing to administer an intravenous medication through a central venous catheter, what is the proper procedure?

• A. Flush the lumen with saline and administer the medication through the lumen
• B. Administer medication without flushing
• C. Use heparinization first then medication
• D. Remove catheter before giving medication

Answer: (A)

The essential practice is to ensure the catheter lumen is clear and ready for drug delivery. Flushing the lumen with sterile saline clears any residual blood or small clots, verifies that the line is open, and helps prevent the medication from becoming backed up or blocked. Once the lumen is confirmed patent, administer the medication through the same lumen so it goes directly into the bloodstream. A following saline flush after the medication is often performed to push the drug fully into circulation and keep the line open. Administering without flushing increases the risk of occlusion and inaccurate dosing. Using heparin before giving the medication isn’t routinely required for every drug and can introduce unnecessary anticoagulation effects or interactions. Removing the catheter before administering medication defeats the purpose of having central access.

The essential practice is to ensure the catheter lumen is clear and ready for drug delivery. Flushing the lumen with sterile saline clears any residual blood or small clots, verifies that the line is open, and helps prevent the medication from becoming backed up or blocked. Once the lumen is confirmed patent, administer the medication through the same lumen so it goes directly into the bloodstream. A following saline flush after the medication is often performed to push the drug fully into circulation and keep the line open. Administering without flushing increases the risk of occlusion and inaccurate dosing. Using heparin before giving the medication isn’t routinely required for every drug and can introduce unnecessary anticoagulation effects or interactions. Removing the catheter before administering medication defeats the purpose of having central access.