
Bleeding disorders or bone marrow diseases, such as leukemia, require the determination of the number of platelets present and/or their ability to function correctly.
A platelet count is often ordered as a part of a complete blood count, which may be done at an annual physical examination. It is almost always ordered when a patient has unexplained bruises or takes what appears to be an unusually long time to stop bleeding from a small cut or wound.
Increased Platelet counts (Thrombocytosis) may be seen in individuals