LOINCActiveObservation

LOINC Code 85534-6: FLUAV avian NUC Ab/Negative control IA (S) [Relative ratio]

85534-6 is a LOINC code used to identify FLUAV avian NUC Ab/Negative control IA (S) [Relative ratio] in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Influenza virus A avian origin nucleoprotein Ab/Negative control. It is commonly used with the system or sample type Ser.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Influenza virus A avian origin nucleoprotein Ab/Negative control. It is commonly used with the system or sample type Ser.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Observation
  • Method: IA

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Influenza virus A avian origin nucleoprotein Ab/Negative control in Serum by Immunoassay
  • Influenza virus A avian origin nucleoprotein Ab/Negative control
  • Similar to most EIA tests, results are reported as a ratio of optical densities. Although it targets an avian-origin NP protein, the protein has been found useful as a screening test for detection of other type A influenza viruses such as swine influenza virus (SIV), and influenza A viruses in other species such as equine, canine, and feline.
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Avian influenza; Bird; Bird flu; EIA; ELFA; ELISA; Enzyme immunoassay; FLUA; FLUAV; FLUAV avian NP Ab; FLUAV avian NUC; FLUV; Fowl; Fowl plague; IAA; ID; Infectious Disease; InfectiousDisease; Influ; Influenza A; Influenza A virus; MEIA; Microbiology; NEG; Point in time; QNT; Quan; Quant; Quantitative; Random; Relative ratio; Serum; SR; SUDS; Vet; Veterinary

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

FLUAV avian NUC Ab/Negative control IA (S) [Relative ratio]Influenza virus A avian origin nucleoprotein Ab/Negative control in Serum by ImmunoassayFLUAV avian NUC Ab Ser IAInfluenza virus A avian origin nucleoprotein Ab/Negative controlMICROInfluenza A Avian NUC/Negative Control, BloodRelRto

Frequently asked questions

Code details

Code85534-6
SystemLOINC
Display nameFLUAV avian NUC Ab/Negative control IA (S) [Relative ratio]
DescriptionInfluenza virus A avian origin nucleoprotein Ab/Negative control
Short nameFLUAV avian NUC Ab Ser IA
ComponentInfluenza virus A avian origin nucleoprotein Ab/Negative control
PropertyRelRto
TimingPt
System (specimen)Ser
ScaleQn
MethodIA
ClassMICRO
Example unitsratio
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.61
Last changed2.64

Consumer names

Influenza A Avian NUC/Negative Control, Blood

Part names

Influenza virus A avian origin nucleoprotein Ab/Negative controlRelRtoPtSerQnIARelative RatioPoint in time (spot)SerumImmunoassay

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

LOINC Code 85534-6 | HealthAssure