Opi
Calc
Absolute Neutrophil (ANC)
DIC Score
HIT (4Ts) Score
Has-Bled Score
Reticulocyte Index
VTE Risk (Padua)
Wells DVT Criteria
4Ts Score (HIT)
4Ts Score: Estimating the pre-test probability of Heparin-Induced Thrombocytopenia (HIT).
Thrombocytopenia
<30%/Nadir<10
+0
30-50%/Nadir 10-19
+1
>50%/Nadir 20-100
+2
Timing of Drop
≤ Day 4
+0
> Day 10
+1
Day 5-10
+2
Thrombosis
None
+0
Recurrent/Skin
+1
New thrombosis
+2
Other Causes
Definite
+0
Possible
+1
None apparent
+2
Estimate HIT Probability
No clinical reference data available.
