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Partial Thromboplastin Time MeSH Descriptor Data 2025


MeSH Heading
Partial Thromboplastin Time
Tree Number(s)
E01.370.225.625.115.600
E05.200.625.115.600
G09.188.660
Unique ID
D010314
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D010314
Annotation
usually NIM
Scope Note
The time required for the appearance of FIBRIN strands following the mixing of PLASMA with phospholipid platelet substitute (e.g., crude cephalins, soybean phosphatides). It is a test of the intrinsic pathway (factors VIII, IX, XI, and XII) and the common pathway (fibrinogen, prothrombin, factors V and X) of BLOOD COAGULATION. It is used as a screening test and to monitor HEPARIN therapy.
Entry Version
PTT
Entry Term(s)
Activated Partial Thromboplastin Time
Cephalin-Kaolin Coagulation Time
Coagulation Time, Cephalin-Kaolin
Kaolin-Cephalin Coagulation Time
Thromboplastin Time, Partial
Previous Indexing
Blood Coagulation Tests (1966-1979)
Thromboplastin (1966-1979)
See Also
Blood Coagulation
Public MeSH Note
91; was see under BLOOD COAGULATION TESTS 1980-90
History Note
91(80); was see under BLOOD COAGULATION TESTS 1980-90
Date Established
1991/01/01
Date of Entry
1979/03/07
Revision Date
2011/06/24
Partial Thromboplastin Time Preferred
Kaolin-Cephalin Coagulation Time Narrower
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