4Ts Score for Heparin-Induced Thrombocytopenia
Differentiates patients with HIT from those with other causes of thrombocytopenia.
When to Use
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- ≤3 points: low probability for HIT (≤5% in original study, <1% in meta-analysis).
- 4-5 points: intermediate probability (~14% probability of HIT).
- 6-8 points: high probability (~64% probability of HIT).
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