What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 48290-1: Sodium nitrite triggered leukotriene release (WBC) [Mass/Vol]

Name: LOINC Code 48290-1: Sodium nitrite triggered leukotriene release (WBC) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.165Z

48290-1 is a LOINC code used to identify Sodium nitrite triggered leukotriene release (WBC) [Mass/Vol] 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 Sodium nitrite leukotriene release. It is commonly used with the system or sample type WBC.

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 Sodium nitrite leukotriene release. It is commonly used with the system or sample type WBC.

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: Both

What it does not mean

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

Key facts

Sodium nitrite triggered leukotriene release [Mass/volume] by Leukocytes
Sodium nitrite leukotriene release
Allergen; Allergens; ALLERGY TESTING; C112; c711; CAST; E250; Erinitrit; Leukocytes; Level; LR; Mass Concentration; Na; Na+; Na-nitrite; Nitrous acid sodium salt; NO2; Point in time; QNT; Quan; Quant; Quantitative; Random; WBCs; White blood cells

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

Sodium nitrite triggered leukotriene release (WBC) [Mass/Vol]Sodium nitrite triggered leukotriene release [Mass/volume] by LeukocytesSodium nitrite LR-mCncSodium nitrite leukotriene releaseALLERGYSodium nitrite triggered leukotriene release, White blood cellsMCnc

Frequently asked questions

Code details

Code48290-1

SystemLOINC

Display nameSodium nitrite triggered leukotriene release (WBC) [Mass/Vol]

DescriptionSodium nitrite leukotriene release

Short nameSodium nitrite LR-mCnc

ComponentSodium nitrite leukotriene release

PropertyMCnc

TimingPt

System (specimen)WBC

ScaleQn

ClassALLERGY

Example unitspg/mL sLT

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.21

Last changed2.70

Consumer names

Sodium nitrite triggered leukotriene release, White blood cells

Part names

Sodium nitrite leukotriene releaseMCncPtWBCQnMass ConcentrationPoint in time (spot)White blood cells

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.