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Part Description

LP187014-8   Response entropy
Entropy is a measure of the depth of anesthesia. State entropy uses the irregularity of the EEG signal in the 0.8 to 32 Hz frequency band to measure cerebral cortex activity, and response entropy uses the FEMG signal in the 0.8 to 47 Hz frequency band to measure cerebral cortex and facial muscle activity, respectively. Typical values for patients undergoing general anesthesia are between 40 and 60 for either state or response entropy, and at these levels of entropy, the probability of patient accidental awareness is low.
These are proprietary measurements and the formulas are not available. Source: Regenstrief LOINC

LOINC Names Get Info

Fully-Specified Name
Response entropy:Score:Pt:Cerebral cortex:Qn:EEG
Long Common Name
Response entropy [Score] Cerebral cortex Electroencephalogram (EEG)
Short Name
Response entropy Scre Ctx EEG

Part Model Get Info

  • Component
    Response entropy
    LP187014-8
    • Analyte
      Response entropy
      LP187014-8
      • Component Numerator
        Response entropy
        LP187014-8
        • Component Numerator Core
          Response entropy
          LP187014-8
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Score
    LP185820-0
  • Time
    Pt
    LP6960-1
  • System
    Cerebral cortex
    LP101929-0
    • System Core
      Cerebral cortex
      LP101929-0
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    EEG
    LP6239-0

Basic Attributes

Class
NEURO
Type
Clinical
First Released
Version 2.54
Last Updated
Version 2.82 (MIN)
Order vs. Observation
Both

Formula (Readable)

This is a proprietary measurement and the formula is not available.

Member of these Panels

LOINCLong Common Name
75885-4IEEE 11073 Rosetta panel

Language Variants Get Info

TagLanguageTranslation
el-GRGreek (Greece)Εντροπία απόκρισης:Βαθμολογία:Pt:Εγκεφαλικός φλοιός:Qn:ΗΕΓ
Synonyms: NEURO Pt Qn Βαθμολογία Εγκεφαλικός φλοιός Εντροπία απόκρισης ΗΕΓ
es-MXSpanish (Mexico)Entropía de respuesta:Puntaje:Punto temporal:Corteza cerebral:Cuantitativo:EEG
it-ITItalian (Italy)Risposta, entropia:Punteggio:Pt:Coretccia cerebrale:Qn:EEG
Synonyms: Elettroencefalogramma Neurologia Punto nel tempo (episodio)
zh-CNChinese (China)反应熵:评分:时间点:大脑皮质:定量型:脑电图
Synonyms: Cereb 分值;得分;分数 反映熵;RE;响应熵;应答熵 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 大脑（Cerebral） 大脑皮层 时刻;随机;随意;瞬间 术语"cerebral"指的是主要由中枢半球（大脑皮质和基底神经节）组成的那部分脑结构 神经学;神经科;神经内科;神经内;神内;脑神经科 脑动电流图;Electroencephalogram;EEG;脑电波记录

Example Units

UnitSource
{score}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=75949-8