Kidney Transplant Tests Before a Living Donor Transplant
Learn about the pre-kidney transplant tests used to check donor health, compatibility, and transplant safety.
Medically reviewed by Peale Chuang, MD, FASN
Last updated: September 8, 2026
Medically reviewed by Peale Chuang, MD, FASN
Last updated: September 8, 2026
Before a living donor kidney transplant can happen, both the donor and recipient must go through medical testing and evaluations. These pre-kidney transplant tests help the care team make sure the donor is healthy enough for surgery and check whether the donor kidney is a good match. The results can help your transplant team choose the safest and best plan for transplant.
Tests for kidney transplant donors
Before someone can donate a kidney, they must go through several health checks and medical tests. Discover what tests are done before kidney transplant below:
Blood Tests
Kidney transplant blood tests, including comprehensive metabolic and liver panels, check how well the donor’s kidneys and liver are working. They can also help look for infections or other health problems that could make surgery unsafe.
Diagnostic Tests
Urine tests, 24-hour urine collection tests, CT scans, and other imaging tests help doctors check that the kidneys are healthy and working normally.
Heart and Lung Checks
Tests like EKGs and chest X-rays help confirm the donor’s heart and lungs are healthy enough for surgery.
Wellness Screenings
Some donors may also need routine health screenings, such as colonoscopy, mammogram, or Pap smear, depending on their age and medical history.
Kidney transplant compatibility testing
Additional testing helps the care team understand how well the donor and recipient match and how likely the recipient’s body is to accept the new kidney. These test results help your care team make informed decisions before and after transplant, including choosing medications that can help lower the risk of rejection.
Blood Type Testing
This test checks whether the donor and recipient have compatible blood types. A compatible blood type helps lower the risk of immediate rejection after transplant.
Tissue Typing (HLA)
Also called HLA or antigen typing, this test compares immune system markers in the donor and recipient to see how closely they match. A closer HLA match may lower the risk of rejection.
Crossmatch Test (HLA)
Crossmatch test for kidney transplant is often one of the final safety checks before transplant. It helps the transplant team determine whether the recipient has antibodies that could react against the donor kidney.
Panel Reactive Antibody (PRA) Test
This test checks how sensitive the recipient’s immune system may be to a donor kidney by looking for antibodies that could react against the donor.
The best tests for kidney transplant patients help your care team find the safest and best possible match for transplant. Your transplant team will guide you through each step of the testing process and explain what the results mean for you. The exact tests you need may vary depending on your transplant center and medical history.
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CareDx provides transplant testing, patient support, and educational resources to help transplant recipients.
CareDx is committed to providing scientifically supported educational content for transplant recipients and caregivers. All content is for educational purposes only and is not intended to serve as medical advice or replace guidance from your healthcare provider. Always seek the advice of your transplant team with any questions you may have regarding your specific medical condition.