What are the requirements for a good blood match?

A good blood match primarily involves considering the donor's blood type, which includes A, B, AB, or O, and whether the donor is a carrier of any diseases that could impact the recipient. The blood type is crucial because incompatible blood transfusions can lead to serious adverse reactions. Additionally, understanding if a donor is a carrier of certain diseases helps ensure the safety of the blood and protects the health of the recipient.

While other factors like medical history and general health may be important in the overall context of blood donation, they do not specifically address the core requirements of having a good blood match. The other options focus on aspects like age, weight, and geographic location, which, while relevant in certain contexts of health care or donation guidance, do not directly influence the compatibility of a blood transfusion in the same impactful way as blood type and disease carrier status do.