The first step in the assessment of primary hemostasis disorders is a review of the platelet count, bleeding time, PT, and PTT, in addition to a careful examination of the peripheral blood smear.

Learn about a blood smear, including why it's done, what to expect during it, and how to interpret its results.

Thrombocytopenia is a condition that causes low levels of platelets, the cells that help your blood clot. Learn more about the causes, symptoms, and treatment of thrombocytopenia.

A low platelet count, or thrombocytopenia, is a condition that can range from mild to severe, depending on the cause. Learn about treatment options.

People with thrombocytopenia have an abnormally low platelet count, which increases the risk of bleeding. Learn about the symptoms, diagnosis, and treatment of this condition.

A platelet count measures the average platelet level in a person’s blood. High or low platelet levels can increase the risk of clotting or excessive bleeding. Platelets, also called thrombocytes ...

Tests for genetic variations of a key protein on platelets, the cell-like blood components that form clots, and their propensity to clump could help physicians determine optimal medication for ...

Examination of a peripheral-blood smear revealed a moderate amount of schistocytes, severe anisocytosis, large platelets, and an increased amount of bands without blasts.

Platelets, best known for their ability to create blood clots in wounds, may also have a role in the immune system.

FIGURE 1. Platelet clumping (blue) was seen on peripheral blood smear. A misdiagnosis would have led to unnecessary tests and treatment. Ms. J, age 55 years, was referred to hematology for ...

Disseminated intravascular coagulation (DIC) causes the production of blood clots in an individual's small blood vessels that ...