Davis’s Laboratory and Diagnostic Tests Online, powered by Unbound Medicine, provides nurses and students access to 400+ test monographs containing reference ranges, indications, patient preparation and result interpretation. Explore these free sample topics:
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Esophagram, video swallow, esophagus x-ray, swallowing function, esophagography.
To assist in diagnosing disease of the esophagus such as stricture or tumor
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