Question

Which blood group is called universal recipient?

• A. O
• B. A
• C. B
• D. AB

Hint:

To remember this: O is for "Out" (can give to anyone), and AB is for "All-in" (can take from anyone). Specifically, AB+ is the true universal recipient.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
The ABO blood group system is based on the presence or absence of specific antigens on the surface of red blood cells and antibodies in the plasma.

Step 2: Detailed Explanation:
A "universal recipient" is a person who can receive blood from any other blood group without a life-threatening reaction.
• Blood Group AB: These individuals have both A and B antigens on their red blood cells but no antibodies against A or B in their plasma. Since they lack these antibodies, their immune system won't attack donor blood from groups A, B, AB, or O.
• Blood Group O: This is the universal donor because it lacks A and B antigens.

Step 3: Final Answer:
Blood group AB is called the universal recipient.