Version 2.78

Term Description

Qualitative test of the presence of leukocyte esterase that implies the presence of leukocytes (WBCs) in the urine.
Source: Regenstrief LOINC

Part Descriptions

LP15701-3   Leukocyte esterase
Leukocyte esterase (LE) is an enzyme contained in WBCs. In fluids that are usually cell "free", detection of this enzyme indicates the presence of a significant number of WBCs which can signal infection or inflammation. In urine, this test is used to detect white blood cells and other abnormalities associated with infections. White blood cells in the urine usually indicate a urinary tract infection (UTI). The LE test detects esterase, an enzyme released by white blood cells. Testing for LE is a routine part of the urine dip stick, and helps to diagnose urinary tract infections. Positive test results are clinically significant. The LE test is also used to screen for gonorrhea and for amniotic fluid infections. The combination of the LE test with the urinary nitrite test provides an excellent tool for the presence of a UTI. A urine sample that tests positive for both nitrite and leukocyte esterase should be cultured for pathogenic bacteria. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Leukocyte esterase

LP20670-3   Leukocyte
Leukocytes or white blood cells (WBCs) are immune cells that fight infection, neoplasms and other inflammatory conditions, and mediate allergic responses. There are five types of WBCs normally present in the circulation that are all derived from a similar stem cell in the bone marrow. The five type of WBCs are divided into two groups based on the presence or absence of granules in the cytoplasm. The granulocytes include the neutrophils, basophils and eosinophils. The non-granulocytes include the lymphocytes and the monocytes. The neutrophils fight infection by ingesting and digesting bacteria. Eosinophils and basophils respond to allergic reactions and are capable of ingesting antigen-antibody complexes. Monocytes phagocytose bacteria and release interferon to stimulate the immune system. Lymphocytes are divided into T-cells and B-cells. T-cell immunity is cellular and involves the activation of phagocytes and B-cell immunity uses antibodies to fight infection. Both elevated and low leukocyte counts can be markers of infection and malignancy, and low leukocyte counts are associated with a variety of primary and secondary immunodeficiencies, depending on the WBC type(s) that are out of range. (Mosby's manual of diagnostic and laboratory tests, Kathleen Deska Pagana; Timothy James Pagana, Elsevier St. Louis, Mo ©2010) Source: Regenstrief LOINC

Fully-Specified Name

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

Additional Names

Short Name
Leukocyte esterase Ur Ql Strip.auto
Display Name
Leukocyte esterase Auto test strip Ql (U)
Consumer Name Alpha Get Info
Leukocyte esterase, Urine

Basic Attributes

Class
UA
Type
Laboratory
First Released
Version 2.34
Last Updated
Version 2.73
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
Both
Common Test Rank Get Info
209

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 Get Info

LOINC Group Group Name
LG36980-7 Leukocyte esterase|PrThr|Urine
LG40953-8 Leukocyte esterase|Urine/Urine sed

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Leukozytenesterase:Nachweis oder Schwellenwert:Zeitpunkt:Urin:Ordinal:Teststreifen.automatisiert
es-ES Spanish (Spain) Esterasa leucocitaria:PrThr:Punto temporal:Orina:Ord:Tira reactiva automatizada
es-MX Spanish (Mexico) Esterasa de leucocitos:Presencia o umbral:Punto temporal:Orina:Ordinal:Tira reactiva automatizada
fr-CA French (Canada) Estérase leucocytaire:Présence-Seuil:Temps ponctuel:Urine:Ordinal:Bâtonnet diagnostique automatisé
fr-FR French (France) Leucocyte estérase:Présence/Seuil:Ponctuel:Urine:Qualitatif:Bandelette réactive automatisée
fr-BE French (Belgium) Estérase leucocytaire:PrThr:Temps ponctuel:Urine:Ordinal:Bâtonnet diagnostique automatisé
Synonyms: Tigette diagnostique.automatisé
it-IT Italian (Italy) Esterasi leucocitaria:PrThr:Pt:Urine:Ord:Test strip.automatico
Synonyms: Analisi delle urine Presenza o Soglia Punto nel tempo (episodio) Striscia reattiva Striscia reattiva automatica
nl-NL Dutch (Netherlands) leukocytenesterase:aanwezigheid:moment:urine:ordinaal:geautomatiseerde teststrip
Synonyms: automatische teststrip
pl-PL Polish (Poland) Leukocytowa esteraza:granica wykrywalności:punkt w czasie:mocz:półilościowy:test paskowy automatyczny
Synonyms: Leukocytowa esteraza
pt-BR Portuguese (Brazil) Leucócito esterase::Pt:Urina:Ord:Fita reagente automatizada
tr-TR Turkish (Turkey) Lökosit esteraz:MevcEşik:Zmlı:İdrar:Srl:Test çubuğu.otomatize
Synonyms: Mevcut
zh-CN Chinese (China) 白细胞酯酶:存在情况或阈值:时间点:尿液:序数型:试纸条.自动化法
Synonyms: Leuc Leuk Lkcs UA WBC WBC Est;WBC 酯酶 WBCs 依次型;分类顺序型;定性的;序数型(或称等级型);性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况(存在、存在与否、是否存在)或阈值(界值、界限、阀值、临界值) 尿;小便;下泉 尿测试条 尿液分析 尿液分析;尿液分析检测;尿液分析检测类;尿液分析检验;尿液分析检验类;尿液分析检验项目类;尿液分析测试;尿液分析测试类 尿液测试条 尿液试条 尿试条 尿试纸条 时刻;随机;随意;瞬间 电子化 白 白细胞(White blood cell,WBC) 白细胞类 白细胞类(White blood cells,白细胞,WBCs) 白血球 白血球类 白血细胞 白血细胞类 自动 自动型 自动法;自动化 试条、试件;试片;试纸;试验片;试验片条;试验纸条 试条.自动;试条.自动化;试条.自动化法;试条.自动法;试纸.自动;试纸.自动化;试纸.自动化法;试纸.自动法;试纸条.自动;试纸条.自动化;试纸条(试条、试件、试片、试纸、试验片、试验片条、试验纸条).自动法

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