A high platelet count indicates too many of the small cells (platelets) that help form blood clots. This can cause dangerous clots and bleeding. Also called thrombocytosis or thrombocythemia, ...

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) ...

The American Red Cross is asking people to help patients in need by making an appointment to give blood or platelets now.

The American Red Cross asks people to help patients in need by making an appointment to give blood or platelets now. Donors of all blood types remain critical to keeping momentum up and the blood ...