< Return to Virtual Testing Guide

Prothrombin Time with INR Collections

Test code: 8847

CPT code(s): 85610

Methodology: Photo-optical Clot Detection

Clinical Significance: Screening test for abnormalities of coagulation factors that are involved in the extrinsic pathway. Also used to monitor effects of Warfarin therapy and to study patients with hereditary and acquired clotting disorders.

Test FAQ: Prothrombin Time with INR