Perthes test
Pronunciation: pĕr′tĕz
Definition: a test for patency of the deep femoral vein; with the patient standing, a tourniquet is applied above the knee; after walking, if the deep circulation is competent, the superficial varicosities remain unchanged; if the deep circulation is occluded, the legs become painful.
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Examples: glitazone, GI cocktail, etc.

