Science
Which Blood Type Is the Universal Donor?
Universal blood donor type?
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What is the answer: which blood type is the universal donor?
The universal donor is O-negative (O-). Because its red cells carry no A, B, or Rh antigens, it can be safely transfused to almost any patient in an emergency.
Why can the universal donor blood type give to everyone?
O-negative red blood cells lack the A, B, and Rh(D) antigens that trigger immune reactions, so a recipient's body has nothing to attack, making it the safest choice when there's no time to test.
Is the universal donor the same as the universal recipient?
No. The universal donor is O-negative, while the universal recipient is AB-positive (AB+), which can safely receive red cells from any blood type.