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Part Descriptions

LP200598-3   light-adapted
Electrooculography (EOG) is a technique for measuring the resting potential of the retina. The EOG is used to assess the function of the pigment epithelium. During dark adaptation, the resting potential decreases slightly and reaches a minimum ("dark trough" or "Dt") after several minutes. When the light is switched on, a substantial increase of the resting potential occurs ("light peak" or "Lp"), which drops off after a few minutes when the retina adapts to the light. The ratio of the voltages (i.e., light peak divided by dark trough) is known as the Arden ratio and is normally above 1.80. The Arden ratio is often abnormal in retinitis pigmentosa, diabetic retinopathy, detached retina, Best disease and many other eye disorders. Source: Regenstrief LOINC

LP420843-7   Electroretinogram.multifocal
A multifocal electroretinogram (mfERG) is a type of ERG. An ERG measures retinal electrical activity using a corneal electrode; an mfERG measures that activity in smaller areas of the retina in order to find local variation and pinpoint areas of dysfunction. PMID: 22038576 Source: Regenstrief LOINC

LP420846-0   N2 amplitude
The waveform found on a multifocal electroretinogram (mfERG) is typically a biphasic wave. The first deflection is negative, the second is positive, and the third is negative, and the three peaks are called N1, P1, and N2, respectively. The amplitude and implicit time can be measured for each, though P1 amplitude and implicit time are the most common measurements. PMID: 22038576 Source: Regenstrief LOINC

LOINC Names Get Info

Fully-Specified Name
N2 amplitude^light-adapted:Elpot:Pt:Macula.left:Qn:Electroretinogram.multifocal
Long Common Name
Left macula N2 amplitude--light-adapted by mfERG
Short Name
L macula N2 amp --lght-adpt mfERG

Part Model Get Info

  • Component
    N2 amplitude^light-adapted
    LP421303-1
    • Analyte
      N2 amplitude
      LP420846-0
      • Component Numerator
        N2 amplitude
        LP420846-0
        • Component Numerator Core
          N2 amplitude
          LP420846-0
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      light-adapted
      LP200598-3
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Elpot
    LP6802-5
  • Time
    Pt
    LP6960-1
  • System
    Macula.left
    LP201272-4
    • System Core
      Macula.left
      LP201272-4
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    Electroretinogram.multifocal
    LP420843-7

Basic Attributes

Class
EYE.ERG
Type
Clinical
First Released
Version 2.69
Last Updated
Version 2.83 (MIN)
Order vs. Observation
Observation

Member of these Panels

LOINCLong Common Name
96227-4Multifocal electroretinography (mfERG) panel

Language Variants Get Info

TagLanguageTranslation
el-GRGreek (Greece)Εύρος N2^προσαρμογή στο φως:Elpot:Pt:Ωχρά κηλίδα.αριστερά:Qn:Ηλεκτρορετινογράφημα.πολυεστιακό
Synonyms: Elpot EYE EYE.ERG Pt Qn Εύρος N2 Ηλεκτροαμφιβληστροειδογράφημα Ηλεκτρορετινογράφημα.πολυεστιακό προσαρμογή στο φως Ωχρά κηλίδα Ωχρά κηλίδα.αριστερά
es-MXSpanish (Mexico)Amplitud N2^ adaptado a la luz:Elpot:Punto temporal:Mácula izquierda:Cuantitativo:Electroretinogram.multifocal
it-ITItalian (Italy)N2, ampiezza^adattato alla luce:Elpot:Pt:Macula.sinistra:Qn:Elettroretinogramma.multifocale
Synonyms: Ampiezza N2 Elettroretinogramma Macula sinistra Mediante ERG mfERG Occhio Potenziale Elettrico (Voltaggio) Punto nel tempo (episodio)
zh-CNChinese (China)N2 波振幅^明适应型:电势:时间点:黄斑.左侧:定量型:视网膜电图.多焦
Synonyms: L LT N2 波振幅（波幅、波幅度、幅度） 伏特;伏特数;电位(伏特数);电位(电压);电势(伏特数);电压;电势(电压) 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 向左 向左侧 左 左侧（Left，LT，L） 左向 左边 时刻;随机;随意;瞬间 明适应;光明适应型;光明适应;光适应型;光适应;亮适应型;亮适应 眼;眼睛;眼科;眼科学与验光变量;眼科学与验光指标 眼科学与视力测定变量.视网膜电图描记术（视网膜电图描记、视网膜电图描记法、视网膜电流描记、视网膜电流描记法、视网膜电流描记术、网膜电图学、视网膜电图、视网膜电能检验、视网膜电图学、ERG）;眼科学与视力测定变量.ERG;Electroretinography;ERG 视网膜电位图;眼电图;视网膜电图描记术;视网膜电图描记法;视网膜电流描记;视网膜电流描记法;视网膜电流描记术;网膜电图学;视网膜电图描记;视网膜电能检验;视网膜电图学;Electroretinogram;ERG 视网膜电图（视网膜电位图、视网膜电图描记术、视网膜电图描记法、视网膜电流描记、视网膜电流描记法、视网膜电流描记术、网膜电图学、视网膜电图描记、视网膜电能检验、视网膜电图学、ERG）.多焦（多焦点） 黄斑（黄斑部、黄斑区）.左侧

Example Units

UnitSource
mVExample UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=96233-2