Which is used as the primary means for determining whether immune-mediated destruction of red blood cells is contributing to a patient's anemia?

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The direct antiglobulin test (DAT), also known as the direct Coombs test, is used to detect antibodies or complement proteins bound to the surface of red blood cells. A positive result indicates that immune-mediated destruction of red blood cells is contributing to the patient's anemia. Antigen typing test, Donath-Landsteiner test, and indirect antiglobulin test are not used for this purpose.

Which Is Used as the Primary Means for Determining Whether