Version 2.77

97097-0 SARS-CoV-2 (COVID-19) Ag [Presence] in Upper respiratory specimen by Rapid immunoassay

Term Description

Qualitative detection of SARS coronavirus 2 (SARS-CoV-2) antigen in upper respiratory specimens, such as nasopharyngeal swabs, by rapid immunoassay methods. Testing is performed for the diagnosis of Coronavirus Disease 2019 (COVID-19).
Source: Regenstrief LOINC

Part Descriptions

LP417540-4   SARS coronavirus 2
The 2019 Novel Coronavirus (2019-nCoV) is a coronavirus first identified as the cause of a respiratory illness outbreak in Wuhan, China. Initially, the outbreak was linked to a large seafood and animal market and thought to only be spread by animal to person contact. Within a short time, a growing number of patients who had not been exposed to animal markets were diagnosed with the infection, indicating person-to-person transmission. As of January 2020, infections with 2019-nCoV had been reported internationally due to confirmed cases in travelers from Wuhan. Overall, clinical symptoms appear milder than SARS Coronavirus (SARS-CoV) and Middle East Respiratory Syndrome (MERS) Coronavirus (MERS-CoV) infections as do the fatality rate and transmissibility. PMID: 31953166 Reported illnesses range from minor or no respiratory symptoms to severe acute respiratory illness and death.

The full genome of the 2019-nCoV 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. Source: 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 Ag
Property
PrThr
Time
Pt
System
Respiratory system specimen.upper
Scale
Ord
Method
IA.rapid

Additional Names

Short Name
SARS-CoV-2 Ag Upper resp Ql IA.rapid
Display Name
SARS-CoV-2 (COVID-19) Ag IA.rapid Ql (Upper resp)
Consumer Name Alpha Get Info
SARS-CoV-2 (COVID-19) antigen, Upper respiratory

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.70
Last Updated
Version 2.77
Change Reason
Release 2.77: SYSTEM: Updated to standardize the representation of "Respiratory system specimen" in the System subhierarchy across LOINC;
Order vs. Observation
Both

Example Answer List LL744-4

Answer Code Score Answer ID
Detected LA11882-0
Not detected LA11883-8

Member of these Panels

LOINC Long Common Name
97099-6 Influenza virus A and B and SARS-CoV-2 (COVID-19) Ag panel - Upper respiratory specimen by Rapid immunoassay

Member of these Groups Get Info

LOINC Group Group Name
LG51046-7 SARS coronavirus 2 Ag|PrThr|Sys:ANYResp
LG51017-8 SARSCoV2 detection

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) SARS-Coronavirus 2 Ag:Nachweis oder Schwellenwert:Zeitpunkt:Probenmaterial vom oberen Respirationstrakt:Ordinal:Immunoassay.schnell
es-MX Spanish (Mexico) SARS coronavirus 2 Ag:PrThr:Punto temporal:Respiratorio superior:Ordinal:IA rápido
fr-FR French (France) Coronavirus SARS-CoV-2 Ag:Présence/Seuil:Ponctuel:Voies respiratoires supérieures:Qualitatif:Immunoanalyse rapide
nl-NL Dutch (Netherlands) SARS-CoV-2 Ag:aanwezigheid:moment:bovenste luchtwegen:ordinaal:immunoassay.sneltest
Synonyms: antigeen bovenste ademhalingsstelsel; systema respiratorium superior IA IA.rapid SARS-virus severe acute respiratory syndrome coronavirus 2; 2019-nCoV; 2019 novel coronavirus; COVID-19 systema respiratorium; ademhalingsstelsel

80383-3 Influenza virus B Ag [Presence] in Upper respiratory specimen by Rapid immunoassay

Term Description

This term was created for, but is not limited in use to, the Influenza B part of the bioMerieux bioNexia Influenza A+B test, which is intended for the qualitative detection and differentiation of Influenza type A and type B antigens in human nasopharyngeal samples. The results of the bioNexia assay should be read ten minutes after the sample is applied to the sample well.
Source: Regenstrief LOINC

Part Descriptions

LP14240-3   Influenza virus B
Influenza virus from the family Orthomyxoviridae are enveloped negative-strand RNA viruses with segmented genomes containing seven to eight gene segments. Of the five genera in the family, only influenza A virus (IAV), influenza B and C viruses are medically relevant to humans. Influenza A and B viruses have a similar structure whereby these viruses each contain eight discrete single-stranded RNA gene segments, each encoding at least one protein. While having a close phylogenetic relationship, influenza virus types A and B manifest very differently. While IAV infects birds, humans and other mammals, influenza B only infects humans and seals. Although both viruses cause human respiratory infection seasonally in temperate climate regions and more continually in the tropics, influenza B is normally less prevalent and causes less severe disease than IAV viruses. Research is ongoing to determine the evolutionary and epidemiological factors that shape the genetic diversity of influenza B virus. PMID: 25812763 [CDC:flu/about/viruses/types] Source: Regenstrief LOINC

Fully-Specified Name

Component
Influenza virus B Ag
Property
PrThr
Time
Pt
System
Respiratory system specimen.upper
Scale
Ord
Method
IA.rapid

Additional Names

Short Name
FLUBV Ag Upper resp Ql IA.rapid
Display Name
FLUBV Ag IA.rapid Ql (Upper resp)
Consumer Name Alpha Get Info
Influenza B (Flu B) antigen, Upper respiratory

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.54
Last Updated
Version 2.77
Change Reason
Release 2.77: SYSTEM: Updated to standardize the representation of "Respiratory system specimen" in the System subhierarchy across LOINC; Release 2.70: SYSTEM: Updated from "Nph" to make the LOINC term consistent with the original intent to represent a manufacturer's test covering NPH washes and nose swabs, as well as to make it consistent across panel usage.; Previous Releases: Corrected System from "Nasopharynx", which is used for LOINC clinical terms, to "Nph", which is the form used for LOINC lab terms.; The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.; The EIA method, which was always intended to cover more than just enzyme-linked immunoassay and whose display name for the long common name has always been Immunoassay, was renamed IA in order to eliminate ambiguity about whether the method has a broader meaning than just enzyme-linked immunoassay. Likewise, EIA.rapid was renamed IA.rapid. These changes were approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Both
Common Test Rank Get Info
1305

Example Answer List LL744-4

Answer Code Score Answer ID
Detected LA11882-0
Not detected LA11883-8

Member of these Panels

LOINC Long Common Name
80381-7 Influenza virus A and B Ag panel - Upper respiratory specimen by Rapid immunoassay
97099-6 Influenza virus A and B and SARS-CoV-2 (COVID-19) Ag panel - Upper respiratory specimen by Rapid immunoassay
95942-9 Influenza virus A and B and SARS-CoV+SARS-CoV-2 (COVID-19) Ag panel - Upper respiratory specimen by Rapid immunoassay

Member of these Groups Get Info

LOINC Group Group Name
LG32757-3 Influenza virus
LG34023-8 Influenza virus B Ag|PrThr|Sys:ANYResp

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Influenza-Virus B Ag:Nachweis oder Schwellenwert:Zeitpunkt:Probenmaterial vom oberen Respirationstrakt:Ordinal:Immunoassay.schnell
es-MX Spanish (Mexico) Virus de la influenza B Ag:Presencia o umbral:Punto temporal:Nasofaringe:Ordinal:Inmunoensayo rápido
fr-FR French (France) Influenza virus B Ag:Présence/Seuil:Ponctuel:Voies respiratoires supérieures:Qualitatif:Immunoanalyse rapide
nl-NL Dutch (Netherlands) Influenzavirus B Ag:aanwezigheid:moment:bovenste luchtwegen:ordinaal:immunoassay.sneltest
Synonyms: antigeen bovenste ademhalingsstelsel; systema respiratorium superior IA IA.rapid systema respiratorium; ademhalingsstelsel

80382-5 Influenza virus A Ag [Presence] in Upper respiratory specimen by Rapid immunoassay

Term Description

This term was created for, but is not limited in use to, the Influenza A part of the bioMerieux bioNexia Influenza A+B test, which is intended for the qualitative detection and differentiation of Influenza type A and type B antigens in human nasopharyngeal samples. The results of the bioNexia assay should be read ten minutes after the sample is applied to the sample well.
Source: Regenstrief LOINC

Part Descriptions

LP14239-5   Influenza virus A
Influenza viruses, from the family Orthomyxoviridae, are enveloped negative-strand RNA viruses with segmented genomes containing seven to eight gene segments. Of the five genera in the family, only influenza A virus (IAV), influenza B and C are medically relevant to humans. Aquatic birds harboring avian IAV are the likely natural reservoir for all known IAV subtypes and are probably the original source of all human pandemic IAV strains. IAV maintained in wild birds have been associated with stable host switch events to novel hosts, including most often to domestic poultry but also to horses, swine, toothed whales and humans. The influenza virus life cycle begins with the binding of viral HA to host cell receptors. Endocytosis and HA-mediated fusion of the viral and cellular membranes occurs. Viral ribonucleoprotein complexes are released into the cytoplasm, travel to the nucleus, then are replicated and transcribed by the viral polymerase complex. The new viruses are formed and bud when the newly formed ribonucleicprotein complexes and structural proteins reach the plasma membrane. Further research is needed to better understand how IAVs switch hosts and the viral genetic changes that underlie human adaptation. IAV causes respiratory infections in humans ranging from asymptomatic to fatal. Pandemics are attributed to "novel" viruses which possess a viral hemagglutinin (HA) to which humans do not have immunity. PMID: 20542248 ] PMID: 25812763
Influenza viruses A and B are single-stranded RNA enveloped viruses belonging to the Orthomyxoviridae family. The symptoms of infection of Influenza A and B include fever, cough, sore throat, rhinorrhea, nasal congestion, headache, myalgia and malaise. Some patients may experience gastrointestinal symptoms including watery diarrhea, vomiting and abdominal pain. The influenza viruses spread rapidly in enclosed spaces with a documented rate of infection of 70% following a common source of exposure. Infection occurs in the respiratory epithelium in both the upper and lower respiratory tract, and the virus can be found in many specimen types, including nasal aspirates, nasal or nasopharyngeal swabs, throat swabs, sputum and tracheal aspirates. When infection rates reach epidemic proportions, hospitalization of children and elderly patients rises as does the mortality rates of elderly patients.(Manual of Clinical Microbiology, 11th edition, James H. Jorgensen; Karen C. Carroll; Guido Funke; Michael A Pfaller; Marie Louise Landry; Sandra S. Richter; David W. Warnock) Source: Regenstrief LOINC

Fully-Specified Name

Component
Influenza virus A Ag
Property
PrThr
Time
Pt
System
Respiratory system specimen.upper
Scale
Ord
Method
IA.rapid

Additional Names

Short Name
FLUAV Ag Upper resp Ql IA.rapid
Display Name
FLUAV Ag IA.rapid Ql (Upper resp)
Consumer Name Alpha Get Info
Influenza A (Flu A) antigen, Upper respiratory

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.54
Last Updated
Version 2.77
Change Reason
Release 2.77: SYSTEM: Updated to standardize the representation of "Respiratory system specimen" in the System subhierarchy across LOINC; Release 2.70: SYSTEM: Updated from "Nph" to make the LOINC term consistent with the original intent to represent a manufacturer's test covering NPH washes and nose swabs, as well as to make it consistent across panel usage.; Previous Releases: Corrected System from "Nasopharynx", which is used for LOINC clinical terms, to "Nph", which is the form used for LOINC lab terms.; The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.; The EIA method, which was always intended to cover more than just enzyme-linked immunoassay and whose display name for the long common name has always been Immunoassay, was renamed IA in order to eliminate ambiguity about whether the method has a broader meaning than just enzyme-linked immunoassay. Likewise, EIA.rapid was renamed IA.rapid. These changes were approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Both
Common Test Rank Get Info
1303

Example Answer List LL744-4

Answer Code Score Answer ID
Detected LA11882-0
Not detected LA11883-8

Member of these Panels

LOINC Long Common Name
80381-7 Influenza virus A and B Ag panel - Upper respiratory specimen by Rapid immunoassay
97099-6 Influenza virus A and B and SARS-CoV-2 (COVID-19) Ag panel - Upper respiratory specimen by Rapid immunoassay
95942-9 Influenza virus A and B and SARS-CoV+SARS-CoV-2 (COVID-19) Ag panel - Upper respiratory specimen by Rapid immunoassay

Member of these Groups Get Info

LOINC Group Group Name
LG32757-3 Influenza virus
LG34020-4 Influenza virus A Ag|PrThr|Sys:ANYResp

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Influenza-Virus A Ag:Nachweis oder Schwellenwert:Zeitpunkt:Probenmaterial vom oberen Respirationstrakt:Ordinal:Immunoassay.schnell
es-MX Spanish (Mexico) Virus de la influenza A Ag:Presencia o umbral:Punto temporal:Nasofaringe:Ordinal:Inmunoensayo rápido
fr-FR French (France) Influenza virus A Ag:Présence/Seuil:Ponctuel:Voies respiratoires supérieures:Qualitatif:Immunoanalyse rapide
nl-NL Dutch (Netherlands) Influenzavirus A Ag:aanwezigheid:moment:bovenste luchtwegen:ordinaal:immunoassay.sneltest
Synonyms: antigeen bovenste ademhalingsstelsel; systema respiratorium superior IA IA.rapid systema respiratorium; ademhalingsstelsel