A donor having blood AB can safely donate red blood cells to recipient having blood group type

Options

A. A and AB
B. B and AB
C. AB only
D. O only

Answer

To determine to whom a donor with blood group AB can safely donate red blood cells, we need to analyze the blood group compatibility based on antigens and antibodies present in the blood.

### Step-by-Step Solution:

1. **Understanding Blood Groups**:
- Blood group AB has both A and B antigens on the surface of red blood cells.
- Blood group AB does not have any antibodies against A or B antigens.

2. **Identifying the Universal Recipient**:
- Blood group AB is known as the universal recipient because individuals with this blood type can receive blood from any other blood group without the risk of agglutination (clumping) due to the absence of antibodies against A and B antigens.

3. **Considering Blood Donation**:
- When considering blood donation, we need to look at the recipient's blood group and the antibodies present in their blood.
- A person with blood group A has A antigens and anti-B antibodies.
- A person with blood group B has B antigens and anti-A antibodies.
- A person with blood group O has neither A nor B antigens but has both anti-A and anti-B antibodies.

4. **Compatibility Analysis**:
- If a donor with blood group AB donates to a recipient with blood group A, the anti-B antibodies in the recipient's blood will attack the B antigens present in the donor's blood, leading to agglutination.
- Similarly, if a donor with blood group AB donates to a recipient with blood group B, the anti-A antibodies in the recipient's blood will attack the A antigens in the donor's blood, also leading to agglutination.
- If a donor with blood group AB donates to a recipient with blood group O, the anti-A and anti-B antibodies in the recipient's blood will attack both A and B antigens, causing agglutination.

5. **Conclusion**:
- The only blood group that a donor with blood group AB can safely donate to is another individual with blood group AB. Therefore, the correct answer is that a donor with blood group AB can safely donate red blood cells to a recipient with blood group AB.

### Final Answer:
A donor having blood group AB can safely donate red blood cells to a recipient having blood group AB.