94642-6

SARS-CoV-2 (COVID-19) S gene [Cycle Threshold #] in Respiratory system specimen by NAA with probe detection

Active

Term Description

The quantitative cross/cycle threshold (Ct) value for the detection of nucleic acids within the spike (S) gene of the SARS coronavirus 2 (SARS-CoV-2) in various respiratory specimens by PCR with probe-based detection.

Part Description

LP418046-1 SARS coronavirus 2 S gene
The Severe acute respiratory syndrome (SARS) coronavirus 2 (SARS-CoV-2), first known as 2019 Novel Coronavirus (2019-nCoV), was first identified as the cause of a respiratory illness outbreak, later defined as Coronavirus Disease 2019 (COVID-19), in Wuhan, China. The full genome of the SARS-CoV-2 that causes COVID-19 was first posted by Chinese health authorities in GenBank, the NIH genetic sequence database, and in the Global Initiative on Sharing All Influenza Data (GISAI) portal. This facilitated detection of the virus globally with subsequent sequences being nearly identical, suggesting a single, recent emergence from a virus related to bat coronaviruses and the SARS coronavirus. Real time Reverse Transcription-Polymerase Chain Reaction (rRT-PCR) tests targeting regions within genes, including RdRp, S, N, M, and E genes, specific to SARS-CoV-2 have been developed by the Centers for Disease Control and Prevention (CDC), the World Health Organization (WHO) and others for the diagnosis of COVID-19. Some assays only detect SARS-CoV-2 and other assays detect other strains (e.g. SARS-CoV) that are genetically similar.[CDC: coronavirus/2019-ncov][https://www.who.int/emergencies/diseases/novel-coronavirus-2019/technical-guidance/laboratory-guidance] Source: Regenstrief LOINC

Reference Information

Type	Source	Reference
Webcontent	Lab Tests Online^®Copyright Copyright © 2021 Lab Tests Online. All rights reserved.	Coronavirus (COVID-19) Testing

Fully-Specified Name

Component: SARS coronavirus 2 S gene
Property: ThreshNum
Time: Pt
System: Respiratory System Specimen
Scale: Qn
Method: Probe.amp.tar

Additional Names

Long Common Name: SARS-CoV-2 (COVID-19) S gene [Cycle Threshold #] in Respiratory system specimen by NAA with probe detection
Short Name: SARS-CoV-2 S gene Ct Resp Qn NAA+probe
Display Name: SARS-CoV-2 (COVID-19) S gene NAA+probe (Respiratory system specimen) [ThreshNum]
Consumer Name Alpha Get Info: SARS-CoV-2 (COVID-19) S gene, Respiratory system specimen

Ask at Order Entry

81959-9 Public health laboratory ask at order entry panel

This panel contains a convenience grouping of terms for questions commonly asked when an order is placed in a public health laboratory.

LOINC	Name	R/O/C	Example UCUM Units
81959-9	Public health laboratory ask at order entry panel
Indent81744-5	Submitter's laboratory test method [Type] in Specimen
Indent81658-7	Suspected organism [Identifier] in Specimen
Indent86952-9	Preliminary testing done Specimen
Indent86953-7	Preliminary testing result Specimen
Indent86955-2	Preliminary testing affected submission for further testing Specimen
Indent95417-2	Whether this is the patient's first test for condition of interest
Indent95418-0	Whether patient is employed in a healthcare setting
Indent95419-8	Whether the patient has symptoms related to condition of interest
Indent11368-8	Illness or injury onset date and time	C
Indent77974-4	Whether the patient was hospitalized for condition of interest
Indent95420-6	Whether the patient was admitted to intensive care unit (ICU) for condition of interest
Indent95421-4	Whether patient resides in a congregate care setting
Indent82810-3	Pregnancy status	C
Indent30525-0	Age		a

Basic Attributes

Class: MICRO
Type: Laboratory
First Released: Version 2.68
Last Updated: Version 2.75 (MAJ)
Change Reason: Release 2.75: SYSTEM: There are 2 similar system's in LOINC: 1- Respiratory system 2- Respiratory specimen Due to an applied logic, the display in the System axis for 1 is Respiratory (adjective) without specification of sample, specimen, or other specific noun, while 2 is displayed fully as Respiratory specimen. Therefore for now we replaced 1 with Respiratory system specimen, which will affect 83 term. The result is replacing "Respiratory" with "Respiratory system specimen". This is the short approach. The bigger project is to potentially merge data that has either 1 or 2 together. This is a project to pass by the laboratory committee and will involve about 1500 concepts.;
Order vs. Observation: Observation

Member of these Panels

LOINC	Long Common Name
96094-8	SARS-CoV-2 (COVID-19) and SARS-related CoV RNA panel - Respiratory system specimen by NAA with probe detection
94531-1	SARS-CoV-2 (COVID-19) RNA panel - Respiratory system specimen by NAA with probe detection

Member of these Groups Get Info

LOINC Group	Group Name
LG51017-8	SARSCoV2 detection
LG51019-4	SARSCoV2 molecular detection

Language Variants Get Info

Tag	Language	Translation
de-DE	German (Germany)	SARS-Coronavirus 2 S-Gen:Ct-Wert:Zeitpunkt:Probenmaterial vom Respirationstrakt:Quantitativ:Zielfragmentamplifikation mit Sondendetektion
el-GR	Greek (Greece)	Γονίδιο S κορωνοϊού SARS 2:ThreshNum:Pt:Δείγμα αναπνευστικού συστήματος:Qn:Ανιχνευτής.ενίσχυση.στόχου Synonyms: S ThreshNum Γονίδιο Γονίδιο S κορωνοϊού SARS 2 Κορωνοϊός Κορωνοϊός SARS Κορωνοϊός SARS 2
es-ES	Spanish (Spain)	Gen S de SARS-CoV-2 (COVID-19):ThreshNnum:Punto temporal:Muestra del sistema respiratorio:Qn:Sonda con amplificación dirigida Synonyms: Cuantitativo Muestra del tracto respiratorio Muestra respiratoria Tracto respiratorio
es-MX	Spanish (Mexico)	Gen del coronavirus 2 S del SARS:ThreshNum:Punto temporal:Espécimen respiratorio:Cuantitativo:Amplificación de ácidos nucleicos con detección de sonda
fr-FR	French (France)	Coronavirus SARS-CoV-2 gène S:Cycle seuil:Ponctuel:Échantillon du système respiratoire:Numérique:PCR amplification de cible
it-IT	Italian (Italy)	SARS-CoV-2 (COVID-19), gene S:Thresnum:Pt:Campione da Sistema Respiratorio:Qn:Sonda.amp.tar Synonyms: Campione da Apparato Respiratorio Coronavirus della SARS Gene S di SARS-CoV-2 (COVID-19) Limite di soglia Microbiologia Punto nel tempo (episodio) SARS-CoV-2 (COVID-19) Sonda con amplificazione Sonda con amplificazione del target Sonda di DNA
nl-NL	Dutch (Netherlands)	SARS-CoV-2 S-gen:drempelwaarde nummer:moment:respiratoir monster:kwantitatief:probe-detectie Synonyms: probe.amp.tar SARS-virus severe acute respiratory syndrome coronavirus 2; 2019-nCoV; 2019 novel coronavirus; COVID-19 systema respiratorium; ademhalingsstelsel
zh-CN	Chinese (China)	SARS 冠状病毒 2 S 基因:阈值循环圈数:时间点:呼吸系统标本:定量型:探针法.基因扩增.靶向 Synonyms: 2019 新型冠状病毒;2019 年新型冠状病毒;2019-nCoV;SARS-CoV-2;新型冠状病毒肺炎;新冠肺炎;Coronavirus disease 2019;COVID-19;冠状病毒疾病2019;严重急性呼吸综合征;severe acute respiratory syndrome;SARS;传染性非典型肺炎;infectious atypical pneumonia;非典 Ⅱ II S 型 SARS;SARS 病毒;SARS-CoV;严重急性呼吸综合征;严重急性呼吸综合征病毒;萨斯病毒;非典;非典型肺炎;非典型肺炎病毒;非典病毒供检查用的材料;待检物;待试验物;样品;样本;试料;试样借助扩增的探针方法;借助扩增的探针法;探针法.扩增借助靶向扩增的探针方法;借助靶向扩增的探针法;探针法.扩增.靶向受检物可用数量表示的;定量性;数值型;数量型;连续数值型标尺呼吸道标本（样品、样本）;呼吸系统标本（样品、样本）微生物学;微生物学试验;微生物学试验（培养、DNA、抗原及抗体）扩增型扩增性时刻;随机;随意;瞬间样品样本界值数;界限数;阀值数;临界值数;阈值循环数;阈值数;达到阈值时的循环圈数;荧光信号到达设定阈值时所经历的循环数;Ct 值;Cycle threshold;循环阈值经过扩增的脱氧核糖核酸探针试样遗传基因;遗传因子;吉恩;生物基因

Example Units

Unit	Source
{Ct_value}	Example UCUM Units

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Copyright © 2025 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.