A mean platelet volume (MPV) blood test measures the average size of your platelets, the tiny blood cells that help form clots to stop bleeding. It is often included in a complete blood count (CBC) ...

You may need an MPV test if you show symptoms that suggest an issue with your platelet size or number. An MPV test involves drawing a blood sample from a vein and typically takes less than five ...

An experimental genetic test can gauge a person's risk of developing potentially deadly blood clots, researchers report. People who scored high on the test had more than double the rate of heart ...

Platelets are circulating cell fragments known to clump up and form blood clots that stop bleeding in injured vessels. Cardiologists have long known that platelets can become "hyperreactive" to cause ...

A simple blood test for platelet activity at middle age could one day help identify people at risk for Alzheimer's disease decades ahead of time, allowing for possible preventive therapy. The ...

Anemia and thrombocytopenia cause low levels of red blood cells and platelets. This can cause fatigue and bleeding problems. Thrombocytopenia is a low platelet count. Platelets, also known as ...

Thrombocytopenia occurs when there aren’t enough platelets, which are tiny blood cells that help with clotting. In some cases, thrombocytopenia is the first sign of acute HIV infection. Severe ...

To help diagnose von Willebrand disease or other bleeding disorders, a doctor will request various blood tests. These tests will measure the presence and activity of certain substances in the blood.