Pregnant lady with prosthetic valve... for prevention of thrombosis..... 1) LMWH 2) Unfractionated heparin 3) aspirin 4) no anti coagulant at all
Warfarin in teratogenic. So . not in 1 st trimester. Action lasts for 7 days for warfarin even after stopping. So in 3 rd trimester
Why to change from heparin to warfarin den again heparin ,explain??
But the best ans is 2