Review Article
Strategies for Diagnosis and Prevention of Venous Thromboembolism during Pregnancy
Table 6
Thromboprophylaxis using UFH—dosage and monitoring.
| (1) Low-dose prophylaxis | (a) First trimester: 5000 to 7000 Units q12 hours | (b) Second trimester: 7500 to 10,000 Units q12 hours | (c) Third trimester: 10,000 Units q12 hours | (i) Unless aPTT elevated | (2) Adjusted dose prophylaxis to aPTT of 1.5 to 2.5 | (a) Dose: 10,000 q8–12 hours | (b) Goal aPTT: 1.5 to 2.5 times normal |
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