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Matching Donors and Recipients

The Organ Procurement and Transplantation Network (OPTN) makes organ matches. It runs the national database of patients waiting for a transplant in the United States.

Policies control how the system matches donor organs to patients on the waiting list.

What are the common matching factors?

Blood type and body size factor into a match.

Other factors include:

  • how bad the patient’s medical condition is;
  • the distance between the donor's and the patient’s hospital;
  • the patient's waiting time; and
  • if the patient is available. For example:
    • If they can’t contact the patient.
    • If the patient has an infection or other reason that they can’t do the transplant. 

The most important factor is the organ itself. Some organs can survive outside the body longer.

There’s a different policy for each organ. Read about how the system decides who gets which organs.

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