Thrombocytopenia

Healthcare providers will do a physical examination. They’ll check for bruises, rashes and other thrombocytopenia symptoms. They’ll ask about your medical history, including any medications you take. They may do tests including:

• Complete blood count (CBC): Providers will check your platelet levels and your white and red blood cell levels.
• Peripheral blood smear: Providers examine your platelets under a microscope.
• Blood clot test: A blood clot test measures the time it takes blood to clot. These tests include partial thromboplastin time (PTT) and prothrombin time (PT) test.
• Bone marrow biopsy: If blood tests show a low platelet count, your healthcare provider may do a bone marrow biopsy.

Your doctor might suggest other tests and procedures to determine the cause of your condition, depending on your signs and symptoms.