LOINC
Version 2.67

50558-6Nitrite [Presence] in Urine by Automated test stripActive

Part Description

LP14270-0   Nitrite
Nitric oxide is converted to nitrate (NO3–) and nitrite (NO2–), both inorganic ions that occur naturally in the soil, water and some foods. Nitrates are relatively non-toxic but can become toxic when converted to nitrites either in food or in the digestive tract. In animals, pigs are more susceptible to nitrite poisoning than cattle and sheep.[PMCID: PMC4170561] Pigs have been poisoned by drinking the condensed water from ventilating shafts in piggeries and after eating plaster board which had fallen into their pens after becoming soaked with this material. Both feed and water consumption need to be considered when encountering nitrate toxicity problems. Source: Regenstrief LOINC

Fully-Specified Name

Component
Nitrite
Property
PrThr
Time
Pt
System
Urine
Scale
Ord
Method
Test strip.automated

Additional Names

Short Name
Nitrite Ur Ql Strip.auto
Display Name
Nitrite Auto test strip Ql (U)

Basic Attributes

Class
UA
Type
Laboratory
First Released
Version 2.22
Last Updated
Version 2.56
Change Reason
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.
Order vs. Observation
Observation

Example Answer List LL360-9

Source: Regenstrief Institute

Answer Code Score Answer ID
Positive Copyright http://snomed.info/sct ID:10828004 Positive (qualifier value) LA6576-8
Negative Copyright http://snomed.info/sct ID:260385009 Negative (qualifier value) LA6577-6

Member of these Panels

LOINC Long Common Name
50556-0 Urinalysis dipstick panel - Urine by Automated test strip
50564-4 Urinalysis panel - Urine by Auto

Member of these Groups

LG35986-5 Nitrite|PrThr|Urine
LG40866-2 Nitrite|Urine/Urine sed

Language Variants Get Info

zh-CNChinese (CHINA)
亚硝酸盐:存在情况或阈值:时间点:尿液:序数型:试纸条.自动化法
nl-NLDutch (NETHERLANDS)
nitriet:aanwezigheid:moment:urine:ordinaal:teststrip.geautomatiseerd
fr-BEFrench (BELGIUM)
Nitrite:PrThr:Temps ponctuel:Urine:Ordinal:Bâtonnet diagnostique automatisé
fr-CAFrench (CANADA)
Nitrite:Présence-Seuil:Temps ponctuel:Urine:Ordinal:Bâtonnet diagnostique automatisé
fr-FRFrench (FRANCE)
Nitrites:Présence/Seuil:Ponctuel:Urine:Qualitatif:Bandelette réactive automatisée
it-ITItalian (ITALY)
Nitrito:PrThr:Pt:Urine:Ord:Test strip.automatico
pt-BRPortuguese (BRAZIL)
Nitrito:ACnc:Pt:Urina:Ord:Fita reagente automatizada
es-ESSpanish (SPAIN)
Nitrito:PrThr:Punto temporal:Orina:Ord:Tira reactiva automatizada
tr-TRTurkish (TURKEY)
Nitrit:MevcEşik:Zmlı:İdrar:Srl:Test çubuğu.otomatize

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=50558-6