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Multiple Choice

Thrombocytopenia results in a low level of which component?

Thrombocytopenia is a deficiency of platelets, the small cell fragments that initiate and support primary hemostasis by forming a platelet plug at injury sites and releasing substances that promote clotting. When platelet counts are low, this initial stop-bleeding step is impaired, leading to easy bruising and prolonged bleeding even if other components of blood are normal. Red blood cells carry oxygen, white blood cells fight infection, and plasma is the liquid portion of blood containing clotting factors; thrombocytopenia specifically reduces the platelet component.

Thrombocytopenia is a deficiency of platelets, the small cell fragments that initiate and support primary hemostasis by forming a platelet plug at injury sites and releasing substances that promote clotting. When platelet counts are low, this initial stop-bleeding step is impaired, leading to easy bruising and prolonged bleeding even if other components of blood are normal. Red blood cells carry oxygen, white blood cells fight infection, and plasma is the liquid portion of blood containing clotting factors; thrombocytopenia specifically reduces the platelet component.