Heparin and Enoxaparin are safe (coumadin is not)
Heparin 80 units/kg IV bolus followed by continuous infusion 18 units/kg/hr 
Enoxaparin 1 milligram/kg (100 IU/kg) SC every 12 or 24 h 
Perimortem cesarean delivery with cardiac arrest with no ROSC in 5 min
Consider thrombolysis in severely unstable post-partum<unk><unk>  (see thrombolytics for<unk><unk> 
Heparin 80 units/kg IV bolus followed by continuous infusion 18 units/kg/hr 
Enoxaparin 1 milligram/kg (100 IU/kg) SC every 12 or 24 h
Pulmonary embolism in pregnancy
Acute coronary syndromes 
Cardiac arrest in pregnancy
STEMI
Comorbid diseases in pregnancy
Non-STEMI
Abdominal pain in pregnancy
Unstable angina