| Test | Result |
| ABO Rh | A+ |
| Polyspecific Ab | 1+ |
| Anti-IgG | (−) |
| Anti-C3 | 1+ |
| Anti-C3d | 1+ |
| Saline control | (−) |
| Eluate from patient’s RBCs | (−) |
| Drug-dependent Ab study | Ceftriaxone-dependent RBC Ab |