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The Vertebral Artery Test or Wallenberg Test is a physical exam for vertebral artery insufficiency. Commonly, the VA test involves cervical spine motion to an end-range position of rotation, extension or a combination of both. At this point, the physician assesses for vertebrobasilar insufficiency (VBI) symptoms.
Vertebrobasilar insufficiency (VBI) describes a temporary set of symptoms due to decreased blood flow in the posterior circulation of the brain. The posterior circulation supplies the medulla , pons , midbrain , cerebellum and (in 70-80% of people) supplies the posterior cerebellar artery to the thalamus and occipital cortex . [ 1 ]
VBI Vaccines Inc. and Variation Biotechnologies, related manufacturers of vaccines; Vertebrobasilar insufficiency, a temporary set of symptoms due to decreased blood flow (ischemia) in the posterior circulation of the brain; Vertical blank interrupt, a hardware feature found in some computer systems that generate a video display
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Spurling's test is somewhat specific when used for individuals with an abnormal electromyogram study and is a relatively sensitive physical examination maneuver in diagnosing cervical spondylosis or acute cervical radiculopathy. It is not a very sensitive test when used for individuals without classic radicular signs suggestive of cervical ...
Several small-cap biotech firms have used the coronavirus as a springboard, and since the pandemic’s onset many have become almost household names. Despite making meaningful market strides over ...
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It is a non-invasive test that can be done in many settings that include clinic exam room, inpatient rooms, and exam rooms dedicated to echo imaging. Examination involves using an echo probe at various positions or windows to obtain views of the heart (thus capturing images/videos for later playback while formally "reading" the study to come up ...