is a coombs test and anti-human globulin test the same thing?
Direct Anti-Human Globulin Test The direct antiglobulin test (DAT) or direct Coombsâ test detects the presence of antibody or complement fraction bound to RBCs in vivo. The test is simply performed by adding AHG or Coombsâ serum to washed patientâs RBCs and is illustrated in Figure 17.2.