Version 2.80

Part Description

LP207644-8   Activated clotting time
The activated clotting time (ACT) measures the time to clot formation after addition of an activator, and is used primarily to monitor a patient's coagulation status during surgery, especially procedures during which patients are on cardiopulmonary bypass. The activator may stimulate the intrinsic and/or extrinsic coagulation pathway, and commonly used activators include kaolin, Celite and glass beads. Various anticoagulant drugs can be used to prevent clot formation and consumption of platelets during surgery. The most common is unfractionated heparin because it has a short half-life and is easily reversed. Baseline ACT and subsequent ACT measurements during and after the procedure help determine the initial heparin dose and titration parameters to achieve a stable level of anticoagulation during surgery, as well as appropriate reversal of anticoagulation after surgery. The ACT can be affected by platelet count, platelet function, temperature of the blood, and acquired or inherited hematologic conditions. The ACT is a point of care test used to monitor patients receiving high doses of heparin in an acute setting, while partial thromboplastin time (PTT) is used to monitor patients who are on lower, long-term therapeutic doses of heparin. Source: Regenstrief LOINC , Lab Tests Online: Activated Clotting Time

Fully-Specified Name

Component
Activated clotting time
Property
Time
Time
Pt
System
Bld
Scale
Qn
Method
Coag

Additional Names

Long Common Name
Activated clotting time (ACT) of Blood by Coagulation assay
Short Name
ACT Bld
Display Name
ACT Coag (Bld)
Consumer Name Alpha Get Info
Activated clotting time, Blood

Basic Attributes

Class
COAG
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.73 (MIN)
Change Reason
Changed the component from "Coagulation activated" to "Activated clotting time" to fit the current LOINC model.
Order vs. Observation
Both
Common Test Rank Get Info
566

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Aktivierte Gerinnungszeit (ACT):Zeit:Zeitpunkt:Blut:Quantitativ:Gerinnungstest
el-GR Greek (Greece) Ενεργοποιημένος χρόνος πήξης:Time:Pt:Αίμα:Qn:Coag
Synonyms: Time Ενεργοποιημένος χρόνος πήξης Χρόνος πήξης
es-AR Spanish (Argentina) coagulación activada:tiempo:punto en el tiempo:sangre:cuantitativo:coagulación
es-ES Spanish (Spain) Tiempo de activación del coágulo:Tiempo:Punto temporal:Sangre:Qn:Coagulativo
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Tiempo de coagulación activado:Tiempo (por ejemplo, segundos):Punto temporal:Sangre:Cuantitativo:Ensayo de coagulación
fr-CA French (Canada) Temps de la coagulation activée:Durée:Temps ponctuel:Sang:Quantitatif:Test de coagulation
fr-FR French (France) Temps de coagulation activé:Temps:Ponctuel:Sang:Numérique:Coagulation
it-IT Italian (Italy) Tempo di coagulazione attivato:Tempo:Pt:Sangue:Qn:Coag
Synonyms: Punto nel tempo (episodio) Sangue Studio di coagulazione Tempo (e.g. secondi) Test di coagulazione
ko-KR Korean (Korea, Republic Of) 활성화 응고시간:시간:검사시점:전혈:정량:응고검사
nl-NL Dutch (Netherlands) geactiveerde stollingstijd:tijd:moment:bloed:kwantitatief:stollingsmethode
Synonyms: ACT; activated clotting time coagulatiemethode
pt-BR Portuguese (Brazil) Coagulação ativada:Tempo:Pt:SgTotal:Qn:Coagulação
Synonyms: ; ACT; Activated coagulation time; Activated clotting time; Point in time; Random; Blood; WB; Whole blood; Quantitative; QNT; Quant; Quan; Coagulation assay; Clot; Tilt tube; ClottAcle
zh-CN Chinese (China) 活化凝血时间:时间:时间点:全血:定量型:凝血功能分析
Synonyms: ACT;激活凝血时间;Activated clotting time 倾斜试管;倾斜试管法;凝固测定;凝血功能测定;凝血测定;快速凝固试验;快速凝血试验;快速凝集试验 凝固 凝固时间;血液凝固时间 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 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

Example Units

Unit Source
s Example UCUM Units
sec REGENSTRIEF

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=3184-9