a test for thoracic outlet syndrome; the patient is seated, with head extended and turned to the side of the lesion; with deep inspiration there is a diminution or total loss of radial pulse on the affected side. Not all patients with a positive result to Adson test have thoracic outlet syndrome.
Synonym(s): Adson maneuver
Farlex Partner Medical Dictionary © Farlex 2012
Adson TestA clinical test for thoracic outlet syndrome which is based on a reduction or obliteration of the radial artery pulse with compression at the interscalene triangle.
Technique The examiner palpates the radial pulses of a seated patient whose hands are on his thighs. The patient then takes a deep breath, holds it, then hyperextends his neck, turning his head, first to one side, then the other; the side on which the radial pulse decreases or disappears—due to compression of the subclavian artery between the pectoralis minor and the chest wall—is the one affected by thoracic outlet syndrome.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
A test for thoracic outlet compression syndrome. The patient's arm is moved back into extension and external rotation with the elbow extended and forearm supinated. The radial pulse is palpated while the patient is asked to tuck the chin, side-bend the head toward the opposite side, and rotate the chin toward the side of the extended arm. The patient is then asked to inhale. A positive sign of numbness or tingling in the hand or diminished pulse indicates the brachial plexus or blood vessels are compromised at the site of the scalene muscle.
See also: Adson, Alfred Washington
Medical Dictionary, © 2009 Farlex and Partners
Adson,Alfred Washington, U.S. neurosurgeon, 1887-1951.
Adson aneurysm needle
Adson angular hook
Adson brain clip
Adson brain-exploring cannula
Adson brain forceps
Adson brain hook
Adson brain retractor
Adson brain suction tip
Adson brain suction tube
Adson cerebellar retractor
Adson cranial rongeur
Adson drainage cannula
Adson dural hook
Adson dural knife
Adson dural protector
Adson Gigli saw
Adson Gigli-saw guide
Adson head rest
Adson maneuver - Synonym(s): Adson test
Adson microbipolar forceps
Adson microdressing forceps
Adson microtissue forceps
Adson procedure - Synonym(s): Adson test
Adson scalp clip
Adson scalp clip-applying forceps
Adson syndrome - (1) thoracic outlet syndrome. Synonym(s): Naffziger syndrome; - (2) cerebral sphingolipidosis.
Brown-Adson forceps - see under Brown, James
Medical Eponyms © Farlex 2012