Thrombocytopenia.

نویسندگان

  • Robert L Gauer
  • Michael M Braun
چکیده

Thrombocytopenia is defined as a platelet count of less than 150 × 10(3) per µL. It is often discovered incidentally when obtaining a complete blood count during an office visit. The etiology usually is not obvious, and additional investigation is required. Patients with platelet counts greater than 50 × 10(3) per µL rarely have symptoms. A platelet count from 30 to 50 × 10(3) per µL rarely manifests as purpura. A count from 10 to 30 × 10(3) per µL may cause bleeding with minimal trauma. A platelet count less than 5 × 10(3) per µL may cause spontaneous bleeding and constitutes a hematologic emergency. Patients who present with thrombocytopenia as part of a multisystem disorder usually are ill and require urgent evaluation and treatment. These patients most likely have an acute infection, heparin-induced thrombocytopenia, liver disease, thrombotic thrombocytopenic purpura/hemolytic uremic syndrome, disseminated intravascular coagulation, or a hematologic disorder. During pregnancy, preeclampsia and the HELLP (hemolysis, elevated liver enzymes, and low platelet count) syndrome are associated with thrombocytopenia. Patients with isolated thrombocytopenia commonly have drug-induced thrombocytopenia, immune thrombocytopenic purpura, pseudothrombocytopenia, or if pregnant, gestational thrombocytopenia. A history, physical examination, and laboratory studies can differentiate patients who require immediate intervention from those who can be treated in the outpatient setting. Treatment is based on the etiology and, in some cases, treating the secondary cause results in normalization of platelet counts. Consultation with a hematologist should be considered if patients require hospitalization, if there is evidence of systemic disease, or if thrombocytopenia worsens despite initial treatment.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Thrombocytopenia and Associated Factors in Neonates Admitted to NICU during Years 2010_2011

Abstract Background Thrombocytopenia is the most common hematological abnormality which is encountered in the neonatal intensive care unit (NICU). The incidence in neonates varies greatly, depending upon the population studies. According to the frequency of thrombocytopenia and its complications and because of lack of such research in Iran, this study was performed on neonates admitted to Sha...

متن کامل

The Prevalence and Risk Factors for Neonatal Thrombocytopenia among Newborns Admitted to Intensive Care Unit of Aliasghar Children’s Hospital

Background: Determining the prevalence and risk factors of thrombocytopenia among neonates enables us to prevent the inevitable and sometimes irreversible complications. In this study we aimed to survey the frequency of thrombocytopenia and its demographic features and risk factors. Materials and methods: In this cross sectional study the platelet counts of 364 neonates admitted to neonatal ...

متن کامل

Thrombocytopenia during the First Week of Life among Neonates with Down Syndrome: Data from Multihospital Healthcare Systems

Background: A fault in chromosome distribution during cell division leads to aneuploidy, which can be associated with thrombocytopenia. Various hematological abnormalities have been reported among neonates with Down syndrome (DS). Neutrophilia, thrombocytopenia and polycythemia were the most common hematological abnormalities observed among neonates with Down syndrome. In particular, thrombocyt...

متن کامل

Laboratory diagnosis of thrombocytopenia

Thrombocytopenia is observed in different clinical situations as inherited and acquired forms. Intracranial bleeding is major life threatening of severe thrombocytopenia. Thrombocytopenia, peripheral blood findings and chromosomal study have opened new insight for correct diagnosis and treatment.

متن کامل

شیوع ترومبوسیتوپنی در بارداری و عوامل مرتبط با آن

Background and purpose: After anemia thrombocytopenia is the most common disorder in pregnancy which is encountered in 10% of pregnancies. Thrombocytopenia in pregnant women may lead to maternal and neonatal morbidity. This condition could involve some complications in pregnancy, so diagnosing its causes is important for treatment. This study was performed to determine the incidence, causes and...

متن کامل

درمان ترومبوسیتوپنی وابسته به ایدز: گزارش موردی

Background: Thrombocytopenia is a common finding in individuals infected with HIV and its incidence increases with progressive immunosuppression. Thrombocytopenia due to AIDS is divided into primary and secondary forms and primary HIV associated thrombocytopenia (PHAT) is the most common cause of thrombocytopenia in these patients. Case presentation: The patient was a 35-year old man with HIV...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • American family physician

دوره 85 6  شماره 

صفحات  -

تاریخ انتشار 2012