Blood type matters — the wrong match can be dangerous. Pick your group to see exactly who you're compatible with.
| Donor ↓ / Recipient → | O- | O+ | A- | A+ | B- | B+ | AB- | AB+ |
|---|---|---|---|---|---|---|---|---|
| O- | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| O+ | · | ✓ | · | ✓ | · | ✓ | · | ✓ |
| A- | · | · | ✓ | ✓ | · | · | ✓ | ✓ |
| A+ | · | · | · | ✓ | · | · | · | ✓ |
| B- | · | · | · | · | ✓ | ✓ | ✓ | ✓ |
| B+ | · | · | · | · | · | ✓ | · | ✓ |
| AB- | · | · | · | · | · | · | ✓ | ✓ |
| AB+ | · | · | · | · | · | · | · | ✓ |
O-negative red cells can be given to any patient — vital in emergencies when there's no time to test.
AB-positive patients can receive red cells from any blood group — the most flexible recipients.
