Version 2.77

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:Zeit:Zeitpunkt:Blut:Quantitativ:Thromboelastografie.Rotation bzw. Thromboelastometrie.Rotation
es-ES Spanish (Spain) Formación del coágulo.sistema extrínseco de coagulación activado.:Tiempo:Punto temporal:Sangre:Qn:Tromboelastografía. Tromboelastometría rotacional
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Formación de coágulos Sistema de coagulación extrínseco activado:Tiempo (por ejemplo, segundos):Punto temporal:Sangre:Cuantitativo:TEG rotacional
fr-FR French (France) Temps de formation du caillot (activation de la voie extrinsèque):Temps:Ponctuel:Sang:Numérique:Thromboélastographie rotationelle
it-IT Italian (Italy) Coagulo, formazione.sistema coagulazione estrinseco attivato:Tempo:Pt:Sangue:Qn:Tromboelastografia.rotazionale
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;TEG rotazionale
pl-PL Polish (Poland) Czas formowania się skrzepu, aktywacja zewnątrzpochodnej drogi krzepnięcia:czas:punkt w czasie:krew:ilościowy:tromboelastografia rotacyjna
pt-BR Portuguese (Brazil) Formação de coágulo.sistema ativado de coagulação extrínseca:Tempo:Pt:SgTotal:Qn:Tromboelastografia
Synonyms: ; CFT.extrinsic; k-time; Point in time; Random; Blood; WB; Whole blood; Quantitative; QNT; Quant; Quan; TEG
zh-CN Chinese (China) 凝块形成.外源性凝血系统激活型:时间:时间点:全血:定量型:血栓弹力描记术.旋转
Synonyms: 凝固;凝固现象;凝血;凝血作用;凝血功能;凝血功能类;凝血类成分;凝血过程 凝块（血块、血凝块、血液凝块）形成（生长）.外源凝血系统激活型 凝血功能;凝血功能试验;凝血过程;血液凝固;血液凝固功能;血液凝固过程 凝血弹性描记法;血栓弹性描记法;血栓弹力图;Thromboelastography;TEG 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 时刻;随机;随意;瞬间 时间(如秒);时间(如秒数) 血;血液 血栓弹力描记术（凝血弹性描记法;血栓弹性描记法;血栓弹力、TEG）.旋转（旋转式）;旋转式血栓弹力描记术;Rotational thromboelastography;ROTEM;TEG®

Example Units

Unit Source
s Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=52770-5