A 45-year-old has been put on the organ transplant waiting list. Which of the following is the most important factor for selecting a donor-recipient match?

Compatible tissue and blood type

Explanation

•Compatible tissue and blood types are the most important when matching a donor to a recipient.

•A good match is one in which the blood types between the donor and recipient are compatible, the tissue typing is well-defined, and the crossmatch studies (looking for preformed antibodies) are negative.

Incorrect options:

•Age and size should be similar, but do not need to be exact.

•Gender is not relevant.

•Need is important, but is not the deciding factor.

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