Human Phenotype Ontology

Last uploaded: January 16, 2025
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Preferred Name

Abnormal prothrombin time
Synonyms

Abnormal PT
Definitions

Any deviation from the normal amount of time to coagulation in the prothrombin time test, which is a measure of the extrinsic pathway of coagulation. The results of the prothrombin time test are often expressed in terms of the International normalized ratio (INR), which is calculated as a ratio of the patient's prothrombin time (PT) to a control PT standardized for the potency of the thromboplastin reagent developed by the World Health Organization (WHO) using the formula: INR is equal to Patient PT divided by Control PT.
ID

http://purl.obolibrary.org/obo/HP_0032199
dc_date

2019-01-19T15:34:30Z
definition

Any deviation from the normal amount of time to coagulation in the prothrombin time test, which is a measure of the extrinsic pathway of coagulation. The results of the prothrombin time test are often expressed in terms of the International normalized ratio (INR), which is calculated as a ratio of the patient's prothrombin time (PT) to a control PT standardized for the potency of the thromboplastin reagent developed by the World Health Organization (WHO) using the formula: INR is equal to Patient PT divided by Control PT.
has_exact_synonym

Abnormal PT
has_obo_namespace

human_phenotype
id

HP:0032199
label

Abnormal prothrombin time
notation

HP:0032199
prefLabel

Abnormal prothrombin time
terms_creator

https://orcid.org/0000-0002-0736-9199
treeView

http://purl.obolibrary.org/obo/HP_0012200
subClassOf

http://purl.obolibrary.org/obo/HP_0012200
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