[khanar]

OK, Am reading for the CK and I noticed that they mentioned we have to do direct Coombs test to check for the Rh then we have to do Indirect Coombs before giving RhoGAM.

I really do not understand why is that, Can anybody please explain for me in understandable language

 

[khanar]

Direct coombs tests for antigens on RBC surface therefore used for typing
Indirect coombs tests for antibodies in the serum therefore used for isoimmunization