Coombs' Activity

INCORRECT

The following is a Positive Coombs' Test result. If this were a Direct test, which of the following would be true?

	After the addition and binding of anti-Rh IgG, anti-human Coombs' Reagent binds and causes the agglutination of Rh+ red blood cells.
	Explanation. This is a good example of an indirect Coombs' test. A direct Coombs' test does not require the addition of anti-Rh lgG.

Immunological Techniques
University of Arizona
Monday, November 17, 1997
douglas.lake@asu.edu