Guide
Blood group compatibility chart
Which blood groups can give to which? This chart covers red cells and whole blood (and plasma, which works the other way round). O− is the universal red-cell donor; AB+ can receive red cells from every group.
| Blood group | Can receive red cells from | Can give red cells to | Can receive plasma from |
|---|---|---|---|
| A+ | A+, A-, O+, O- | A+, AB+ | A-, A+, AB-, AB+ |
| A- | A-, O- | A+, A-, AB+, AB- | A-, A+, AB-, AB+ |
| B+ | B+, B-, O+, O- | B+, AB+ | B-, B+, AB-, AB+ |
| B- | B-, O- | B+, B-, AB+, AB- | B-, B+, AB-, AB+ |
| AB+ | A+, A-, B+, B-, AB+, AB-, O+, O- | AB+ | AB-, AB+ |
| AB- | AB-, A-, B-, O- | AB+, AB- | AB-, AB+ |
| O+ | O+, O- | A+, B+, AB+, O+ | O-, O+, A-, A+, B-, B+, AB-, AB+ |
| O- | O- | A+, A-, B+, B-, AB+, AB-, O+, O- | O-, O+, A-, A+, B-, B+, AB-, AB+ |
Platelets are matched by the hospital. This chart is general information, not medical advice — the hospital or blood bank always does the final cross-match.
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