A man whose blood group is not known meets with an accident and needs blood transfusion immediately. Which one of the following groups mentioned below and readily available in the hospital will be safe for transfusion?
Verified Answer
A. O, Rh-
B. O, Rh+
C. AB, Rh-
D. AB, Rh+
Explanation:
O Rh-negative blood is considered the "universal donor" because it lacks A, B, and Rh antigens, making it compatible with all other blood types in emergency transfusions when the recipient's blood type is unknown.