Kompatibilnost krvnih grupa
| Tabela kompatibilnosti krvnih grupa | ||||||||
Primalac | Donator / Davalac | |||||||
| O- | O+ | A- | A+ | B- | B+ | AB- | AB+ | |
| O- | + | – | – | – | – | – | – | – |
| O+ | + | + | – | – | – | – | – | – |
| A- | + | – | + | – | – | – | – | – |
| A+ | + | + | + | + | – | – | – | – |
| B- | + | – | – | – | + | – | – | – |
| B+ | + | + | – | – | + | + | – | – |
| AB- | + | – | + | – | + | – | + | – |
| AB+ | + | + | + | + | + | + | + | + |