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**Blood Type O Negative: The Universal Donor** Blood type O negative is often called the “universal donor” because it can be safely transfused to almost any patient, regardless of their blood type. This is due to the absence of A, B, and Rh antigens on the surface of O negative red blood cells, which minimizes the risk of immune reactions during transfusions. This blood type is especially critical in emergency situations where there is no time to test a patient’s blood type. Hospitals and blood banks prioritize O negative donations because they can be used for newborns, trauma victims, and patients with rare blood types. Additionally, O negative blood is relatively rare, found in only about 7% of the global population, which makes it a precious resource. Understanding the special role of O negative blood highlights the importance of donating and maintaining adequate supplies for medical emergencies.
Blood type O negative is famously known as the "universal donor" blood type. This designation comes from its unique immunological properties that allow it to be…