A reduction in which of the following clotting factors is consistent with normal pregnancy?
Clotting factors that decrease during pregnancy are factor XI and XIII. Clotting factors increase during pregnancy are X, IX, VIII, VII, and II. Fibrinogen level is raised by 50% from 200-400 mg% in non-pregnant to 300-600 mg% in pregnancy. Ref: Dutta, 6th ed, Page 52
Fibrinogen
Factor XIII
Factor VIII
Factor X