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Allen Test (Radial/Ulnar Arteries)
- Ask the patient to make a tight fist.
- Compress both the ulnar and radial arteries.
- Ask the patient to open the hand.
- Release pressure on the ulnar side.
- The hand should "pink" up in a few seconds.
- Repeat the process for the radial artery as indicated.
Copyright 1996 by the University of Florida