Emergency medicine clinics of North America
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Patients with anemia are frequently encountered in the emergency department (ED); emergency physicians (EPs) often play an important role in the evaluation and management of anemia. Although many patients have findings consistent with anemia on routine laboratory tests, only a small percentage will require acute intervention. An understanding of the broader types of anemia and how to manage such patients is important in the practice of an EP, as the presence of anemia will impact treatment plans for a variety of other disorders. This article reviews the evaluation and management of adult patients presenting to the ED with anemia.
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The actively bleeding anticoagulated patient presenting to the emergency department requires rapid evaluation and treatment, which is made increasingly complicated by the ever-evolving antithrombotic treatment options used in medicine. Even with excellent supportive care, the timeliness with which reversal decisions need to be made continues to demand of the emergency practitioner a familiarity with the properties and general characteristics of a variety of antithrombotic agents. Reversal options vary and may include vitamin K, FFP, PCC, rFVIIa, platelets, and desmopressin, among others.
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The emergency providers generally encounters myeloproliferative disorders (MPNs) in 1 of 2 ways: as striking laboratory abnormalities of seeming unknown consequence, or in previously diagnosed patients presenting with complications. The course of patients with MPNs is highly variable, but major complications can arise. ⋯ Rapid hydration, transfusion, cytoreduction, and early hematology consultation can be lifesaving. Likewise, although management is not altered, a high index of suspicion for thrombotic complications is required in patients with known MPNs as these are a significant cause of morbidity and mortality.
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Blood product transfusions are an essential component of the practice of emergency medicine. From acute traumatic hemorrhage to chronic blood loss necessitating transfusion for symptomatic anemia, familiarity with individual blood products and their indications for transfusion is an essential tool for every emergency physician (EP). Although the focus of this article is primarily on the transfusion of red blood cells, many of the concepts are applicable to the transfusion of all blood products. EPs must be fully familiar with both the individual blood components and the potential reactions and complications of these transfusions.