Platelet
Counts platelet cells in blood to assess clotting ability.
Why This Biomarker Matters
Platelet count indicates bleeding and clotting risk. Low counts increase bleeding risk; high counts increase clot risk. Abnormal results require investigation of underlying causes.
Overview
Platelets are cell fragments essential for blood clotting and stopping bleeding. This test counts platelets in blood, with the Rees-Ecker method being a manual counting technique. Normal platelet counts range from 150,000 to 400,000 per microliter. Low platelet counts (thrombocytopenia) increase bleeding risk, while high counts (thrombocytosis) increase clot risk. Abnormal counts may indicate bone marrow disorders, autoimmune disease, infections, or medication effects.
Technical Information (LOINC Codes)
Standardized laboratory codes for this biomarker
776-5Primary28542-932623-147283-7Available Lab Tests
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