52770-5
Clot formation.extrinsic coagulation system activated [Time] in Blood by Rotational TEG
Active
Term Description
Tests such as the prothrombin time (PT) and activated prothromin time (aPTT) can predict bleeding or be used for haemostasis management, but it is difficult to determine which part of the intrinsic or extrinsic pathway is disrupted in an individual. Since these tests are performed on platelet-poor plasma, they do not provide a true representation of the physiological clotting process so they do no provide adequate information on either clot formation over time or fibrinolysis. (Young et al, 2013).
Clotting time (CT) is the time for a clot to reach an amplitude of 2 mm. Clot formation time (CFT) is the time for clot firmness to incease from 2mm (CT) to 20 mm. A prolonged CFT is usually caused by poor platelet function, low platelet count, fibrin polymerization disorders or fibrinogen deficiency. Higher concentrations of heparin can also prolong CFT in the INTEM assay, but not in HEPTEM, EXTEM, FIBTEM or APTEM. A low CFT indicates hypercoagulability. PMID: 27264484
Source: Regenstrief LOINC
Part Description
LP270303-3 Thromboelastography.rotational
Rotational thromboelastography, also called thromboelastometry or ROTEM, is similar to traditional thromboelastography (TEG) in that it is used to measure the viscoelastic properties of a clot. In TEG, whole blood is added to a cup in which a pin is suspended, the cup is rotated, and as the clot forms, the rotational force is transferred to the pin. The movement of the pin is transformed into a tracing, from which the clotting parameters are derived. In ROTEM, the cup is stationary and the pin rotates, and as the clot forms, the rotation of the pin slows down. The torsion of the pin is transformed into a tracing from which the ROTEM parameters are derived. PMID: 22726088
Source: Regenstrief LOINC
Fully-Specified Name
- Component
- Clot formation.extrinsic coagulation system activated
- Property
- Time
- Time
- Pt
- System
- Bld
- Scale
- Qn
- Method
- Thromboelastography.rotational
Additional Names
- Short Name
- CFT.extrinsic Bld ROTEM
- Display Name
- Clot formation.extrinsic coagulation system activated ROTEM (Bld) [Time]
- Consumer Name Alpha Get Info
- Clot formation.extrinsic coagulation system activated, Blood
Basic Attributes
- Class
- COAG
- Type
- Laboratory
- First Released
- Version 2.24
- Last Updated
- Version 2.73
- Change Reason
- Updated Method from Thromboelastography to clarify that the Method used for this assay is rotational TEG ("ROTEM") and to distinguish from the original thromboelastography and new resonance thromboelastography Methods.
- Order vs. Observation
- Observation
- Common Test Rank Get Info
- 12542
Member of these Panels
LOINC | Long Common Name |
---|---|
52763-0 | Extrinsic coagulation system thromboelastography panel - Blood |
Language Variants Get Info
Tag | Language | Translation |
---|---|---|
de-AT | German (Austria) | Synonyms: Clot Form.Time EXTEM |
de-DE | German (Germany) | Blutgerinnselformation.extrinsisches Gerinnungssystem aktiviert: Synonyms: Thromboelastographie |
es-ES | Spanish (Spain) | Formación del coágulo.sistema extrínseco de coagulación activado.: Synonyms: Cuantitativo |
es-MX | Spanish (Mexico) | Formación de coágulos Sistema de coagulación extrínseco activado: |
fr-FR | French (France) | Temps de formation du caillot (activation de la voie extrinsèque): |
it-IT | Italian (Italy) | Coagulo, formazione.sistema coagulazione estrinseco attivato: Synonyms: Formazione del coagulo Formazione del coagulo.sistema di coagulazione est Punto nel tempo (episodio) Sangue Studio di coagulazione TEG Tempo (e.g. secondi) Tromboelastografia rotazionale; |
pl-PL | Polish (Poland) | Czas formowania się skrzepu, aktywacja zewnątrzpochodnej drogi krzepnięcia: |
pt-BR | Portuguese (Brazil) | Formação de coágulo.sistema ativado de coagulação extrínseca: Synonyms: ; |
zh-CN | Chinese (China) | 凝块形成.外源性凝血系统激活型: Synonyms: 凝固; |
Example Units
Unit | Source |
---|---|
s | Example UCUM Units |
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