A Nurse Performs the Allen Test to Evaluate the Adequacy

question 21

Multiple Choice

A nurse performs the Allen test to evaluate the adequacy of circulation in the radial artery by:

• A) Asking the patient to relax the hand by the side.
• B) Compressing only the ulnar artery to blanch the hand.
• C) Releasing pressure on both arteries at the same time.
• D) Observing whether the color is returning to hand, which indicates perfusion.