74039-9
LaboratoryInfluenza virus A H3 RNA [Cycle Threshold #] in Specimen by NAA with probe detection
Definition
The quantitative cross/cycle threshold (Ct) value may be reported for real-time PCR-based assays. The value is defined by the number of PCR cycles required for the fluorescent signal of a given product (targeted RNA) to cross the threshold (i.e. exceed background level). In general, the lower the Ct value, the greater the amount of targeted nucleic acid and vice versa. The interpretation (e.g. positive, negative, indeterminate) is determined based on a cut-off value. The submitter's lab reports the interpretation in OBX.8 segment and the specimen type in SPM.4 field of HL7 messaging.
LOINC 6-Axis Classification
Component
Influenza virus A H3 RNA
Property
ThreshNum
Time Aspect
Pt
System
XXX
Scale Type
Qn
Method Type
Probe.amp.tar
Details
Class
MICRO
Order/Observation
Both
Short Name
FLUAV H3 RNA Ct Spec Qn NAA+probe
Display Name
FLUAV H3 RNA NAA+probe (Specimen) [ThreshNum]
Related Names
Frequently Asked Questions
What is LOINC code 74039-9?
LOINC code 74039-9 identifies "Influenza virus A H3 RNA [Cycle Threshold #] in Specimen by NAA with probe detection". The quantitative cross/cycle threshold (Ct) value may be reported for real-time PCR-based assays. The value is defined by the number of PCR cycles required for the fluorescent signal of a given product (targeted RNA) to cross the threshold (i.e. exceed background level). In general, the lower the Ct value, the greater the amount of targeted nucleic acid and vice versa. The interpretation (e.g. positive, negative, indeterminate) is determined based on a cut-off value. The submitter's lab reports the interpretation in OBX.8 segment and the specimen type in SPM.4 field of HL7 messaging.
What does 74039-9 measure?
This code measures Influenza virus A H3 RNA in XXX. It belongs to the MICRO class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.