ABSTRACT
Introduction 374 Normal platelet count in an uncomplicated pregnancy 374 Evaluation of a pregnant woman with thrombocytopenia 374 Etiology of thrombocytopenia in pregnancy 376 Incidental thrombocytopenia of pregnancy 376 Thrombocytopenia associated with hypertensive
disorders of pregnancy 377 Thrombocytopenia associated with acute fatty liver of
pregnancy 380 Primary autoimmune thrombocytopenia: idiopathic
thrombocytopenic purpura 380 Secondary autoimmune thrombocytopenia 382 Thrombocytopenia associated with systemic lupus
erythematosus 382
Thrombocytopenia associated with human immunodeficiency virus infection 384
Thrombocytopenia associated with lymphoproliferative disorders 385
Drug-induced thrombocytopenia 385 Heparin-induced thrombocytopenia 385 Thrombotic thrombocytopenic purpura and hemolytic
uremic syndrome 386 Disseminated intravascular coagulation 387 Posttransfusion purpura 387 Neonatal alloimmune thrombocytopenia 388 Acknowledgments 388 References 388
Thrombocytopenia is defined as a reduction in the number of circulating platelets to less than the laboratory’s normal value, which is typically less than 150 109/L. It is important to note that the normal range for an individual’s platelet count has been determined in healthy, but not pregnant individuals. Therefore, this value may not necessarily reflect the normal range in pregnant women.
