150,000 to 400,000 platelets per microliter (mcL)
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What abnormal results mean
A lower-than-normal number of platelets (
- Certain medications
Disseminated intravascular coagulation(DIC) Hemolytic anemia
Idiopathic thrombocytopenic purpura(ITP)
- Massive blood transfusion
- Prosthetic heart valve
- Thombotic thrombocytopenic purpura (TTP)
A higher-than-normal number of platelets (thrombocytosis) may be due to:
Chronic myelogenous leukemia(CML) Polycythemia vera
- Primary thrombocythemia
- Recent spleen removal
Review Date: 02/13/2011
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.