The Nurse Is Preparing to Perform a Modified Allen Test

question 22

Multiple Choice

The nurse is preparing to perform a modified Allen test. Which is an appropriate reason for this test?

• A) To measure the rate of lymphatic drainage
• B) To evaluate the adequacy of capillary patency before venous blood draws
• C) To evaluate the adequacy of collateral circulation before cannulating the radial artery
• D) To evaluate the venous refill rate that occurs after the ulnar and radial arteries are temporarily occluded

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