A differential blood count is a blood test to check your white blood cell levels, which can indicate the presence of infection, disease, or an allergic reaction. Your doctor might order it as part of ...

A CBC is a common procedure that measures the different components in the blood. Doctors will measure different blood cell levels and compare them with the expected levels for a person of the same age ...

Because leukemia is a blood cancer, it can affect a person’s platelet count. People with leukemia sometimes have a low platelet count. However, other conditions can also cause low platelets. Leukemia ...

Platelets (also called thrombocytes) are small blood cell fragments made by your bone marrow. They help form blood clots to stop you from bleeding when you've been injured. Platelets are small cell ...

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 evaluation ...