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Term Description

The count of negative control spots (0 to >20) in a patient's T cells incubated without M. tuberculosis antigens (ESAT-6, CFP10). This term is created for, but not limited in use to, Oxford Immunotec's T-SPOT.TB assay, used to diagnose M. tuberculosis. T-SPOT.TB assay uses enzyme-linked immunospot (ELISPOT) methodology to enumerate M. tuberculosis-sensitized T cells by capturing interferon-gamma (IFN-y) in the vicinity of T cells in the patient's whole blood. In the T-SPOT.TB test, a typical result is expected to have few to no spots in the negative (nil) control and 20 or more spots in the positive control (Mitogen stimulated). A negative control spot count of >10 is considered invalid.

LOINC Names Get Info

Fully-Specified Name
Gamma interferon.negative control spot count:Num:Pt:Bld:Qn:
Long Common Name
Gamma interferon negative control spot count [#] in Blood
Short Name
IGNF neg cntrl Bld
Display Name
Gamma interferon negative control spot count (Bld) [#]
Consumer Name Alpha Get Info
Gamma interferon negative control spot count, Blood

Part Model Get Info

  • Component
    Gamma interferon.negative control spot count
    LP173646-3
    • Analyte
      Gamma interferon.negative control spot count
      LP173646-3
      • Component Numerator
        Gamma interferon.negative control spot count
        LP173646-3
        • Component Numerator Core
          Gamma interferon.negative control spot count
          LP173646-3
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Num
    LP6841-3
  • Time
    Pt
    LP6960-1
  • System
    Bld
    LP7057-5
    • System Core
      Bld
      LP7057-5
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.46
Last Updated
Version 2.46 (MIN)
Order vs. Observation
Both

Member of these Panels

LOINCLong Common Name
74281-7Mycobacterium tuberculosis stimulated gamma interferon and spot count panel - Blood
99771-8SARS coronavirus 2 spike and nucleocapsid protein stimulated gamma interferon panel - Blood

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Interferon gama negativní kontrola počet teček:Počet:Časový bod:Krev:Kvantitativní:
el-GRGreek (Greece)γ-ιντερφερόνη.μέτρηση κηλίδων αρνητικού ελέγχου:Αρ.:Pt:Αίμα:Qn:
Synonyms: MICRO Pt Qn Αίμα Αρ. Γ-ιντερφερόνη.αρνητικός έλεγχος γ-ιντερφερόνη.μέτρηση κηλίδων αρνητικού ελέγχου Ιντερφερόνη
es-ESSpanish (Spain)Interferón gamma control negativo de recuento de manchas:Número (recuento):Punto temporal:Sangre:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Recuento de puntos de control negativo de interferón gamma:Número (recuento):Punto temporal:Sangre:Cuantitativo:
fr-FRFrench (France)Interféron gamma spots contrôle négatif comptés:Nombre:Ponctuel:Sang:Numérique:
it-ITItalian (Italy)Interferone gamma.controllo negativo numero di spot:Num:Pt:Sangue:Qn:
Synonyms: Microbiologia Numero (conta) Punto nel tempo (episodio) Sangue
nl-NLDutch (Netherlands)gamma-interferon.negatieve controle spot telling:aantal:moment:bloed:kwantitatief:
pl-PLPolish (Poland)Interferon gamma.kontrola negatywna liczba spotów:liczba:punkt w czasie:krew:ilościowy:
Synonyms: IFN-gamma kontrola negatywna Liczba plamek w kontroli negatywnej IFN-gamma
ru-RURussian (Russian Federation)Гамма интерферон.негативный контроль пятно количество:Кол:ТчкВрм:Кр:Колич:
Synonyms: Количественный Количество Кровь Точка во времени;Момент
tr-TRTurkish (Turkey)Gamma interferon.negatif kontrol spot sayım:Say:Zmlı:Kan:Kant:
zh-CNChinese (China)Gamma 干扰素.阴性对照斑点计数:数量(计数):时间点:全血:定量型:
Synonyms: Gamma 干扰素（γ干扰素、IFN-γ）.阴性对照（控制） Gamma 干扰素（γ干扰素、IFN-γ）.阴性对照（控制）斑点（斑、点）计数 IFN Neg 不存在的 个数;数量;数量或计数（非负整数）;计数 反面的 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 否定的 否认的 微生物学;微生物学试验;微生物学试验（培养、DNA、抗原及抗体） 时刻;随机;随意;瞬间 消极的 血;血液 负性的 负的 负面的 阴 阴性（Negative，Neg）

Example Units

UnitSource
{#}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=74279-1