Influenza virus A H5 RNA [Cycle Threshold #] in Specimen by NAA with probe detection   77605-4

LOINC Code


LOINC code77605-4
nameInfluenza virus A H5 RNA [Cycle Threshold #] in Specimen by NAA with probe detection
descriptionThe goose/Guangdong lineage H5 viruses emerged in the late 90s in Asia and subsequently became the only lineage of viruses known to be highly pathogenic to poultry and sustained in wild birds. The World Health Organization recognizes these viruses under a unified H5 clade nomenclature. Viruses from this lineage, specifically clade 2.3.4.4, were introduced into North American flyways in late 2014 via the Bering Strait into the Pacific flyway and again in late 2021 into the Atlantic flyway. [PMID:25855748] The NALHN influenza A molecular assay (matrix 2009) works well for the detection of this viral clade and is the primary surveillance tool. As a screening tool, the NAHLN H5 assay does not distinguish geographic lineage nor pathotype (LPAI vs HPAI). This clade specific assay uses real-time reverse transcriptase PCR targeted to clade H5 2.3.4.4.
statusACTIVE

Fully-Specified Name

componentInfluenza virus A H5 RNA
propertyThreshNum  =  Threshold Number
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemXXX
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
methodProbe.amp.tar

Additional Names

short nameFLUAV H5 RNA Ct Spec Qn NAA+probe

Basic Attributes

classMICRO
type1  Laboratory
order vs. observationBoth
example UCUM units{Ct_value}
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unitCt

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

Member of these Groups

LG32757-3Influenza virus

History/Usage

first released
last updated2.74
last change typeNAM  - change to Analyte/Component
change reasonRelease 2.74: DefinitionDescription: Per updated information from NAHLH; add clarity and updated context. ; COMPONENT: Per updated information from NAHLH; add clarity and updated context.; Previous Releases: Changed property from 'ThresNum' to clarify the property name.

Related Names

3 Self-Sustaining Sequence Replication
3SR SR
Amplif
Amplification
Amplified
Avian influenza
Bird flu
DNA NUCLEIC ACID PROBE
DNA probe
FLUA
FLUAV
FLUAV H5
FLUV
Fowl plague
ID
Infectious Disease
InfectiousDisease
Influ
Influenza A
Influenza A virus
LAT
LCR
Ligase chain reaction
Ligation-activated transcription
Microbiology
Misc
Miscellaneous
NAA+probe
NAAT
NASBA
Nucleic acid sequence based analysis
Other
PCR
Point in time
Polymerase chain reaction
Probe amp
Probe with ampification
Probe with target amplification
QBR
QNT
Quan
Quant
Quantitative
Random
Ribonucleic acid
SDA
Spec
Strand Displacement Amplification
TMA
To be specified in another part of the message
Transcription mediated amplification
Unspecified
Vet
Veterinary

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, 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.

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