What is the priority nursing action for a client who has just returned from cardiac catheterization?

Following a cardiac catheterization, the priority nursing action is to immobilize the affected extremity. This is crucial because the catheter is usually inserted into a large artery in the groin or arm, and movement of the extremity can increase the risk of complications such as bleeding or hematoma formation at the insertion site. Keeping the extremity still helps to maintain hemostasis and supports proper healing after the procedure.

While monitoring the heart rate continuously and assessing the insertion site are important nursing responsibilities, they can be considered secondary to the immediate need to ensure that the affected limb remains stable and free from movement. Administering anticoagulant medication is typically not a priority right after the procedure, as the focus should be on monitoring for any complications related to the catheterization itself rather than initiating new medications without clear indication. Thus, immobilizing the affected extremity is essential to prevent potential complications and promote patient safety right after the procedure.