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  1. Platelet count blood test: Normal, low, and high values

    Apr 25, 2025 · A platelet count measures the average platelet level in a person’s blood. High or low platelet levels can increase the risk of clotting or excessive bleeding.

  2. Platelet - Wikipedia

    Platelets secrete thromboxane A2, which acts on the platelet's own thromboxane receptors on the platelet surface (hence the so-called "out-in" mechanism), and those of other platelets.

  3. What Are Platelets and Why Are They Important?

    Platelets are the cells that circulate within our blood and bind together when they recognize damaged blood vessels.

  4. Platelet Count (PLT): Normal Range, Test Results & Meaning

    Platelet Count A platelet count (PLT) is a test that measures the number of platelets in your blood. Platelets help your blood clot. Too few platelets can be a sign of cancer, infections or other …

  5. Platelets (Thrombocytes): Function, Normal Values, and More

    Nov 18, 2025 · Gain an understanding of what a platelet or thrombocyte is, including its function in the body and what your platelet count means on a blood test.

  6. What Are Platelets In Blood

    Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding. Platelets are made in our bone marrow, the sponge-like tissue inside our …

  7. Platelet | Clotting, Coagulation, Thrombosis | Britannica

    Nov 14, 2025 · Platelet, colourless, nonnucleated blood component that is important in the formation of blood clots (coagulation). Platelets are found only in the blood of mammals.

  8. Thrombocytopenia (low platelet count) - Symptoms and causes

    May 13, 2025 · Overview Thrombocytopenia is low blood platelet count. Platelets, also called thrombocytes, are colorless blood cells that help blood clot. Platelets stop bleeding by …

  9. Platelet Disorders What Are Platelet Disorders? - NHLBI, NIH

    Mar 24, 2022 · Platelet disorders cause your platelet count to be too high or too low or your platelets not to work properly. Learn about the causes, symptoms, diagnosis, and treatments …

  10. Health Encyclopedia - University of Rochester Medical Center

    Platelets are tiny blood cells that help your body form clots to stop bleeding. If one of your blood vessels gets damaged, it sends out signals to the platelets. The platelets then rush to the site …