Adson Test
Adson Test - Related Videos
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FAQs
The maneuver is intended to stress the space between the scalene muscles and nearby structures. Neck extension, rotation toward the symptomatic side, and deep inspiration can narrow this region, potentially affecting the subclavian artery. Monitoring the radial pulse during these conditions gives the examiner a way to observe whether the vascular component changes when the thoracic outlet is challenged.
A diminished or altered radial pulse during the Adson Test can support suspicion that the maneuver is affecting arterial flow, but it does not establish thoracic outlet syndrome. The result must be interpreted with the patient’s symptoms and the rest of the clinical assessment. In practice, the pulse finding is a clue that helps guide further evaluation.
Symptom reproduction and pulse alteration provide different observations. A pulse change draws attention to possible subclavian artery involvement, whereas reproduction of the patient’s symptoms indicates that the maneuver has recreated a clinically relevant complaint. Considering both findings is more informative than treating either one as definitive, because the test is not diagnostic by itself.
Head rotation toward the symptomatic side is part of the combined maneuver intended to narrow the scalene-related space when paired with neck extension and deep breathing. This positioning matters because the test challenges the suspected thoracic outlet region under specific physical conditions, allowing the examiner to observe pulse or symptom changes during the maneuver.
The examiner observes the radial pulse before and during the maneuver, while the patient extends the neck, turns the head toward the symptomatic side, and takes a deep breath. The examiner also notes whether symptoms are reproduced. Recording these findings together supports a more complete clinical interpretation than relying on pulse strength alone.
The Adson Test is most useful as one part of a broader evaluation for suspected thoracic outlet syndrome. Clinicians combine its findings with the patient’s history, physical examination, and other investigations. This approach places a maneuver-based observation within the overall clinical presentation and helps guide evaluation and management without treating a single result as conclusive.