Preferred Label : International Normalized Ratio of Prothrombin Time;
NCIt related terms : INR; Prothrombin Intl. Normalized Ratio;
NCIt definition : A measure of the extrinsic pathway of coagulation. The International Normalized Ratio
of Prothrombin Time (INR) is the ratio of a patient prothrombin time to a normal (control)
sample raised to the power of the International Sensitivity Index (ISI) with a range
of 0.8 to 1.2 seconds.;
Alternative definition : CDISC: A ratio that represents the prothrombin time for a plasma specimen, divided
by the result for a control plasma specimen, further standardized for the International
Sensitivity Index of the tissue factor (thromboplastin) used in the test.;
Origin ID : C64805;
UMLS CUI : C3853850;
Semantic type(s)
- concept_is_in_subset
- related_to_genetic_biomarker
