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EXPERIMENTAL FACTOR ONTOLOGY - ANNOTATIONS

Term:prothrombin time measurement
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Accession:EFO:0008390 term browser browse the term
Definition:Quantification of the clotting tendency of blood plasma following the addition of tissue factor. Prothrombin time requires the presence of factors I, II, V, VII, and X. It measures the extrinsic pathway of coagulation and can be used in conjunction with the activated partial thromboplastin time (aPTT) which measures the intrinsic pathway. It is used as a screening test and can be affected by vitamin K deficiency, liver disease, warfarin therapy or intestinal problems.
Synonyms:exact_synonym: International normalized ratio of prothrombin time measurement;   PT/INR measurement;   ProTime INR measurement
 xref: CMO:0000211;   PMID:22703881;   Wikipedia:Prothrombin_time
 external_ontology: is_about is_about EFO:0001421;   is_about EFO:UBERON:0001969

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        hematological measurement 0
          prothrombin time measurement 0
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