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TABLE 1
| Laboratory parameter | Pre‐transfusion | Post‐transfusion |
|---|---|---|
| ABO/Rh type, patient | A‐POS | A‐POS |
| ABO/Rh type, PP platelet unit | O‐POS | O‐POS |
| Antibody screen | Negative | Negative |
| DAT | Negative | Positive |
| Eluate | – | Anti‐A1 |
| Anti‐A titer, PP unit | – | 64 |
| Anti‐A titer, donor #5 (saline‐IgG) | – | 2048 |
| Hemoglobin | 8.3 g/dL | 6.4 g/dL |
| Total bilirubin | 0.5 mg/dL | 1.0 mg/dL |
| Indirect bilirubin | – | 0.8 mg/dL |
| Lactate dehydrogenase | – | 836 IU/L |
| Haptoglobin | – | <10 mg/dL |
