PT panel
Measures the time required for blood to clot and evaluates vitamin K-dependent clotting factors.
Why This Biomarker Matters
PT assesses bleeding risk and monitors anticoagulant therapy. Abnormal results indicate clotting disorders or liver dysfunction that require medical intervention.
Overview
The PT (prothrombin time) panel measures how long it takes for your blood to clot. It specifically evaluates clotting factors involved in the extrinsic pathway, including factors affected by vitamin K and warfarin anticoagulant therapy. Results are often reported as INR (International Normalized Ratio) to standardize results across labs. Abnormal PT values may indicate bleeding disorders, liver disease, vitamin K deficiency, or problems with anticoagulant medications.
Technical Information (LOINC Codes)
Standardized laboratory codes for this biomarker
34528-0PrimaryAvailable Lab Tests
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