TY - CHAP M1 - Book, Section TI - Classification, Clinical Manifestations, and Evaluation of Disorders of Hemostasis A1 - Levi, Marcel A1 - Kaushansky, Kenneth A2 - Kaushansky, Kenneth A2 - Prchal, Josef T. A2 - Burns, Linda J. A2 - Lichtman, Marshall A. A2 - Levi, Marcel A2 - Linch, David C. PY - 2021 T2 - Williams Hematology, 10e AB - SUMMARYEvaluation of a hemostatic disorder is commonly initiated when (a) a patient or referring physician suspects a bleeding tendency, (b) a bleeding tendency is discovered in one or more family members, (c) an abnormal coagulation assay result is obtained from an individual as part of a routine examination, (d) an abnormal assay result is obtained from a patient during preparation for surgery, or (e) a patient has unexplained diffuse bleeding during or after surgery, during critical illness, or after trauma. Evaluation of a possible hemostatic disorder in each of these scenarios is a stepwise process that requires knowledge of the various classes of hemostatic disorders commonly found under the patient’s particular circumstances. The patient’s history, the results of a physical examination, and an initial set of hemostatic tests usually enable a tentative diagnosis. However, more specific tests are commonly necessary to make a definitive diagnosis. This chapter reviews the necessary steps. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/12 UR - hemonc.mhmedical.com/content.aspx?aid=1178754002 ER -