Version 2.78

Term Description

The count of mitogen-stimulated (e.g. phytohemagglutinin, PHA) spots (0 to >50) in a patient's T cells which serves as serves as an IFN-gamma positive control and indicates cell functionality. 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 test, the positive control spot count should be greater than or equal to 20 or show saturation (too many spots to count). When the spot count is <20, the result should be considered invalid unless Panel A (ESAT-6) or Panel B (CFP10) are positive or borderline.
Source: Regenstrief LOINC

Fully-Specified Name

Component
Mitogen stimulated gamma interferon.positive control spot count
Property
Num
Time
Pt
System
Bld
Scale
Qn
Method

Additional Names

Short Name
Mitogen IGNF.spot count Bld
Display Name
Mitogen stimulated gamma interferon positive control spot count (Bld) [#]
Consumer Name Alpha Get Info
Mitogen stimulated gamma interferon positive control spot count, Blood

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.46
Last Updated
Version 2.73
Order vs. Observation
Both
Common Test Rank Get Info
10814

Member of these Panels

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

Language Variants Get Info

Tag Language Translation
es-ES Spanish (Spain) Mitógeno estimulado con interferón gamma control positivo de recuento de manchas:Número (recuento):Punto temporal:Sangre:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Recuento de puntos de control positivo de interferón gamma estimulado por mitógenos:Número (recuento):Punto temporal:Sangre:Cuantitativo:
fr-FR French (France) Interféron gamma stimulé par mitogène contrôle positif spots comptés:Nombre:Ponctuel:Sang:Numérique:
it-IT Italian (Italy) Interferone gamma stimolato da mitogeno.controllo positivo numero di spot:Num:Pt:Sangue:Qn:
Synonyms: Microbiologia Numero (conta) Punto nel tempo (episodio) Sangue
nl-NL Dutch (Netherlands) mitogean gestimuleerd gamma-interferon.positieve controle spot count:aantal:moment:bloed:kwantitatief:
pt-BR Portuguese (Brazil) Mitógeno estimulado gama interferon.controle positivo contagem de ponto::Pt:SgTotal:Qn:
ru-RU Russian (Russian Federation) Митоген стимулированный гамма интерферон.позитивный контроль пятно количество:Кол:ТчкВрм:Кр:Колич:
Synonyms: Количественный Количество Кровь Точка во времени;Момент
tr-TR Turkish (Turkey) Mitogen uyarılmış gamma interferon.pozitif kontrol spot sayım:Say:Zmlı:Kan:Kant:
zh-CN Chinese (China) 丝裂原刺激型 gamma 干扰素.阳性对照斑点计数:数量(计数):时间点:全血:定量型:
Synonyms: IFN 个数;数量;数量或计数（非负整数）;计数 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 干扰素.gamma 丝裂原刺激;丝裂原刺激型 gamma 干扰素（γ干扰素、IFN-γ）.阳性对照（控制）斑点（斑、点）计数 干扰素.gamma 丝裂原刺激;丝裂原刺激型γ干扰素;丝裂原刺激型 IFN-γ 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 结果阳性 血;血液 试验阳性 试验阳性的 阳性结果

Example Units

Unit Source
{#} 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=74280-9