A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His one friend who has a valid cetrificate of his own blood type of offers blood donation without delay. What would have been the type of blood group of the donor friend?

Options

(a) Type B
(b) Type AB
(c) Type O
(d) Type A

Correct Answer:

Type O

Explanation:

Type O blood group is considered the universal donot blood group. It can protentially be transfused to any patient regardless of their blood type. In emergency situation, this type of blood can be given to the patint.