Test | Primary hyperfibrinolysis | DIC | TTP |
CBC and blood smear | Normal | Thrombocytopenia, MAHA | Thrombocytopenia, MAHA |
PT and aPTT | Normal or prolonged | Prolonged | Normal |
Fibrinogen | Decreased | Decreased | Normal |
D-dimer or FDP* | Increased | Increased | Normal |
Antithrombin | Normal | Decreased | Normal |
Euglobulin clot lysis time | Shortened | Shortened | Normal |
ADAMTS13 activity | Normal | Normal or mildly reduced¶ | Severely deficient (usually <10%)Δ |
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