Question

john is type o-. he is donating blood today and wants to know what blood types can accept his blood. what would you tell him? ab- ab+ o- a- a+ b+ o+ b-

Explanation:

O - blood is the universal donor for red blood cells (since it has neither A nor B antigens and no Rh factor). So, any blood type (with or without Rh - negative, and any ABO type) can accept O - blood. Let's check each option:

• AB - : Can accept O - (as O - has no A/B antigens to trigger an immune response and no Rh factor to conflict with Rh - negative AB -).
• AB+: Can accept O - (O - has no A/B antigens, and AB+ can accept Rh - negative blood as it has Rh+ but can tolerate Rh - in small amounts for red blood cell transfusion).
• O - : Can accept O - (self - compatibility).
• A - : Can accept O - (O - has no A/B antigens, so no immune reaction against A -'s A antigen or lack of B antigen).
• A+: Can accept O - (O - has no A/B antigens, and A+ can accept Rh - negative blood for red blood cells).
• B+: Can accept O - (O - has no A/B antigens, and B+ can accept Rh - negative blood for red blood cells).
• O+: Can accept O - (O - has no A/B antigens, and O+ can accept Rh - negative blood for red blood cells as Rh - is compatible with Rh+ in red blood cell transfusion).
• B - : Can accept O - (O - has no A/B antigens, so no immune reaction against B -'s B antigen or lack of A antigen).

Answer:

AB - , AB+, O -, A -, A+, B+, O+, B -