TY - CHAP M1 - Book, Section TI - Acquired Disorders of Coagulation A1 - Leavitt, Andrew D. A1 - Minichiello, Tracy A2 - Papadakis, Maxine A. A2 - McPhee, Stephen J. A2 - Rabow, Michael W. PY - 2020 T2 - Current Medical Diagnosis and Treatment 2020 AB - Patients with antiphospholipid antibodies occasionally have antibody specificity to coagulation factor II (prothrombin), leading typically to a severe hypoprothrombinemia and bleeding. Mixing studies may or may not reveal presence of an inhibitor, as the antibody typically binds a non-enzymatically active portion of the molecule that leads to accelerated clearance, but characteristically the PT is prolonged and levels of factor II are low. FFP should be administered for treatment of bleeding. Treatment is immunosuppressive. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2022/05/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=1166166693 ER -