Coombs' Activity

Question 2

This positive result will be observed in which one of the following situations?

Indirect Coombs' test where Rh- red cells are incubated with anti-human IgG.

Direct Coombs test using fetal Rh+ red cells plus anti-human IgG.

Indirect Coombs' test using fetal Rh+ red cells plus anti-human IgG.

Indirect Coombs' of Rh- fetus red cells, plus serum from an Rh- mother plus anti-human IgG.

Immunological Techniques
University of Arizona
douglas.lake@asu.edu