Table 5: LMWH dose.

Body weight*
(Kg)
Dalteparin
s.c. U/24 h
Tinzaparin
s.c. U/24 h
Enoxaparin
mg/24 h

Risk score = 2 to 4***
 “Normal-dose” thromboprophylaxis<905000450040
>907500**75 U/kg**60**

“Very high risk” of VTE****
<502500 × 2**20 × 2**
 “High-dose” thromboprophylaxis50–905000 × 2**175 U/kg**40 × 2**
>907500 × 2**60 × 2**

*Initial maternal weight at the antenatal care unit.
**Initial doses.
***Maximum score is 4.
****measurable anti-FXa activity during the whole day, that is, >0.1 U/mL plasma before next dose.