Case 4: Acquired hemophilia.
| . | Patient . | Normal Range . |
|---|---|---|
| Abbreviations: aPTT, activated partial thromboplastin time; PT, prothrombin time; B.U., Bethesda units | ||
| aPTT (seconds) | 45 | 22.9–33.1 |
| PT (seconds) | Normal | |
| Fibrinogen (mg/dL) | 286 | 170–400 |
| Bleeding time (minutes) | 7.5 | 2–7.5 |
| Platelet count (/μL) | 323,000 | 150–400,000 |
| Factor VIII | 8% | > 50% |
| Factor IX | 121% | > 50% |
| Factor XI | 73% | > 50% |
| Factor VIII inhibitor titer (B.U.) | 3.5 | < 0.6 |
| . | Patient . | Normal Range . |
|---|---|---|
| Abbreviations: aPTT, activated partial thromboplastin time; PT, prothrombin time; B.U., Bethesda units | ||
| aPTT (seconds) | 45 | 22.9–33.1 |
| PT (seconds) | Normal | |
| Fibrinogen (mg/dL) | 286 | 170–400 |
| Bleeding time (minutes) | 7.5 | 2–7.5 |
| Platelet count (/μL) | 323,000 | 150–400,000 |
| Factor VIII | 8% | > 50% |
| Factor IX | 121% | > 50% |
| Factor XI | 73% | > 50% |
| Factor VIII inhibitor titer (B.U.) | 3.5 | < 0.6 |