A platelet count less than 100,000 indicates which condition?

A platelet count of less than 100,000 is indicative of thrombocytopenia, a condition characterized by a lower-than-normal number of platelets in the blood. Platelets are crucial for blood clotting, and having fewer than the normal range can lead to increased risk of bleeding and bruising. Thrombocytopenia can arise from various causes, including bone marrow disorders, autoimmune diseases, certain medications, or increased destruction of platelets due to conditions like splenic sequestration.

The other conditions listed do not relate directly to low platelet counts. Thrombocythemia refers to an elevated platelet count and is the opposite of thrombocytopenia. Leukopenia indicates a low white blood cell count, which is unrelated to platelet levels, while anemia refers to a deficiency in the number or quality of red blood cells, which also does not involve platelets. Understanding the specific role and implications of platelet counts is essential for diagnosing and managing hematological conditions effectively.