Editing Allen's test (section)

===Original test===
The original test proposed by Allen is performed as follows:<ref name="allenoriginal"/>
# The patient is asked to clench both fists tightly for 1 minute at the same time.
# Pressure is applied over the [[Radial artery|radial]] and [[Ulnar artery|ulnar arteries]] simultaneously so as to occlude them.
# The patient then opens the fingers of both hands rapidly, and the examiner compares the colour of both. The initial [[pallor]] should be replaced quickly by [[rubor]].
# The test may be repeated, this time occluding the ulnar arteries.