Cross matching of blood will not test for which of the following blood types?

Cross-matching of blood is a laboratory test performed prior to blood transfusion to ensure compatibility between donor blood and recipient blood. This procedure involves mixing the blood from the donor with a sample of the recipient’s serum to identify any reactions that may lead to hemolytic transfusion reactions.

When it comes to blood types, the ABO blood group system consists of types A, B, AB, and O, while the Rh factor determines whether the blood type is positive or negative (for example, A+ or O-). The purpose of cross-matching primarily focuses on the ABO blood group antigens (A and B) on red blood cells and the corresponding antibodies in the serum of the recipient.

The Rh factor, on the other hand, is tested separately through a different procedure called the Rh typing test. While it is important to consider Rh compatibility for ensuring patient safety, the cross-matching process as defined is more concerned with the ABO antigens. Therefore, cross-matching specifically does not test for the Rh type, making it the correct choice in this context. This understanding highlights the distinction between assessing ABO compatibility and Rh factor typing, emphasizing why cross-matching will not directly test for the Rh factor.