Which is the correct order of steps to perform the modified Allen test?
1. Pressure is applied to both the radial and ulnar arteries.
2. The fist is opened but not fully extended.
3. Pressure on the ulnar artery is removed.
4. The hand is clenched into a tight fist.
5. The palm and fingers are blanched.
a. 4, 1, 2, 5, 3 c. 1, 4, 3, 2, 5
b. 4, 5, 1, 3, 2 d. 4, 2, 1, 3, 5
ANS: A
The order for the modified Allen test is as follows: (1) the hand is clenched into a tight fist; (2) pressure is applied to both the radial and ulnar arteries; (3) the hand is opened but not fully ex-tended; (4) the palm and fingers are blanched; and (5) pressure on the ulnar artery is re-moved—this should result in flushing of the entire hand.
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