The nurse is caring for a client who is scheduled for a transesophageal echocardiogram. What nursing intervention is a priority after the procedure?

Monitor the puncture site and assess the affected extremity.

Observe for bloody urine and stools.

Keep the client turned to the right side and watch for bleeding from the site.

Keep the head of the bed elevated 45 degrees and keep NPO until return of the gag reflex.