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Pertinent laboratory investigations during hospital course.
| Laboratory values (reference ranges) | On admission | Day 3 (worsening oxygen requirements) | At the time of development of hematoma |
|---|---|---|---|
| Hemoglobin (13.0–17.0 g/dL) | 14.6 | 13.8 | 13.2 |
| Platelet count (150–400 × 103 mm3) | 236 | 226 | 397 |
| Prothrombin time (10.4–13.7 sec) | 11.9 | 12.8 | 12.2 |
| Activated partial thromboplastin time (27.2–35.7 sec) | 26.1 | 33.2 | 31 |
| D-dimer (0.00–211.00 ng/mL) | 437 | 554 | 521 |
