Question

In a road accident, a patient with an unknown blood group needs an immediate blood transfusion. Which blood group could be administered immediately without matching the blood?

• A. Blood group A
• B. Blood group O
• C. Blood group AB
• D. Blood group B

Answer 1

The correct option is B Blood group O

• According to the distribution of antigens and antibodies there are four groups of blood, A, B, AB and O.
• During the blood transfusion, any blood cannot be used. The blood of the donor should be carefully matched with the blood of the recipient before any blood transfusion, to avoid severe problems.
• Group "O" can be donated to persons with any other blood group and hence "O" group individuals are called "universal donors".
• So, blood group of the donor must be "O".