Fasting Required: No
Specimen: Blood
Results: 1-2 Business Days
Description: This test is the determination of ABO blood group and Rh type. The possible blood types are: O positive, O negative, A positive, A negative, B positive, B negative, AB positive and AB negative. Type O negative is known as the universal donor and AB positive is known as the universal recipient. Rh typing (positive or negative) is generally used to determine Rh immune globulin (present in red blood cells) candidacy for prenatal and postpartum patients.