17-hydroxycorticosteroid test

[-hī-drŏk′sē-kôr′tĭ-kō-stîroid′, -stĕr-]
n.
  1. A test employing a reaction of adrenocorticosteroid and phenylhydrazine, performed on urine and used to measure adrenocortical function, as in the diagnosis of Addison's disease and Cushing's syndrome.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.