When performing an Allen test on the left hand of a patient, you notice that the palm, fingers, and thumb remain blanched for more than 15 sec after pressure on the ulnar artery is released. What should you do?
A) Use the brachial site for sampling.
B) Sample from the contralateral radial artery.
C) Use the femoral site for sampling.
D) Perform the Allen test on the right hand.

Question

Quizplus · Accepted Answer

Performing the Allen test on the right hand will help determine if the patient has adequate collateral circulation in the other hand, which is necessary before proceeding with arterial sampling from the radial artery.

When Performing an Allen Test on the Left Hand of a Patient