What does "Platelet count" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
A platelet count is a blood test that measures the number of platelets in a person's blood. Platelets are tiny blood cells that help the body form clots to stop bleeding. If someone's platelet count is too high or too low, it can indicate a medical condition or disease. This test is often part of a complete blood count, which checks the levels of different types of cells in the blood.
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