Skip to Content
Medical Term:

patch test


Definition: a test of skin sensitiveness: a small piece of paper, tape, or a cup, wet with nonirritating diluted test fluid, is applied to skin of the upper back or upper outer arm and after 48 hours the covered is compared with the uncovered surface; an erythematous reaction with vesicles occurs if the substance causes contact allergy.

See Also: photo-patch test

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.