Credits: 1.00 Post-Assessment Questions: 3
Release Date: 5 Oct 2020
Expiration Date: 7 Feb 2022
Last Reviewed: 7 Feb 2021
Estimated Time To Finish: 60 Minutes
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The Allen test (AT) is used to assess collateral blood flow to the hands. The radial artery is easily palpable. The need for this test arises from the inability to palpate the ulnar artery. Because the ulnar artery cannot be palpated, its patency cannot be assessed, and therefore, collateral circulation of the hand cannot be confirmed. If the radial artery needs to be cannulated or catheterized and there is a risk for thrombosis, then the Allen test can help confirm that the hand will maintain adequate blood flow through the ulnar artery and collaterals in the event it becomes occluded. A positive Allen test means that the patient does not have an adequate dual blood supply to the hand, which would be a negative indication for catheterization, removal of the radial artery, or any procedure which may result in occlusion of the vessel. This activity reviews the evaluation of the ulnar artery using the Allen test and discusses the role of laboratory technicians, respiratory therapists, nurses, and clinicians in performing the test.
This activity has been designed to meet the educational needs of physicians.
At the conclusion of this activity, the learner will be better able to:
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Authors: Jonah Zisquit, James Velasquez
Editors: Nicholas Nedeff
Editors-In-Chief: Lawrence GreitenMichael FirstenbergLawrence Lee
Chief Medical Reviewer: Ryan Winters
Nurse Planner/Reviewer/Editor: Lisa Haddad
Nurse Planner/Reviewer/Editor: Bernadette Makar
Nurse Planner/Reviewer/Editor: Dorothy Caputo
Pharmacy Planner/Reviewer/Editor: Mark Pellegrini
Physician Planner/Reviewer/Editor: Scott Dulebohn
The Campbell University Jerry M. Wallace School of Osteopathic Medicine (CUSOM) is accredited by the American Osteopathic Association to provide osteopathic continuing medical education for physicians. CUSOM designates this enduring material for a maximum of 1.00 AOA Category 1 B Credits and will report CME credits commensurate with the extent of the physician's participation in the activity.
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StatPearls and CUSOM adheres to AOA Standards regarding commercial support of continuing medical education. It is the policy of StatPearls and Campbell that the faculty and planning committee disclose real or apparent conflicts of interest relating to the topics of this educational activity, that relevant conflict(s) of interest are resolved and also that authors and editors will disclose any unlabeled/unapproved use of drug(s) or device(s) during their presentation. Detailed disclosure will be made prior to starting the activity.
The information provided at this CME/CE activity is for continuing education purposes only and is not meant to substitute for the independent medical/clinical judgment of a healthcare provider relative to diagnostic and treatment options of a specific patient’s medical condition.
This course is intended for osteopathic physicians who wish to earn AOA CME credit. Take this version of the course to ensure you receive appropriate credit.
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