Version 2.78

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
ACnc
Time
Pt
System
Urine
Scale
Qn
Method

Additional Names

Short Name
Leukocyte esterase Ur-aCnc
Display Name
Leukocyte esterase Qn (U)
Consumer Name Alpha Get Info
Leukocyte esterase, Urine

Basic Attributes

Class
UA
Type
Laboratory
First Released
Version 2.00
Last Updated
Version 2.73
Order vs. Observation
Both
Common Test Rank Get Info
169

Member of these Groups Get Info

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

Language Variants Get Info

Tag Language Translation
es-AR Spanish (Argentina) leucocito esterasa:concentración arbitraria:punto en el tiempo:orina:cuantitativo:
es-ES Spanish (Spain) Esterasa leucocitaria:Concentración arbitraria:Punto temporal:Orina:Qn:
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Esterasa de leucocitos:Concentración arbitraria:Punto temporal:Orina:Cuantitativo:
fr-CA French (Canada) Estérase leucocytaire:Concentration arbitraire:Temps ponctuel:Urine:Quantitatif:
fr-FR French (France) Leucocyte estérase:Arbitraire/Volume:Ponctuel:Urine:Numérique:
fr-BE French (Belgium) Estérase leucocytaire:Concentration arbitraire:Temps ponctuel:Urine:Quantitatif:
it-IT Italian (Italy) Esterasi leucocitaria:ACnc:Pt:Urine:Qn:
Synonyms: Analisi delle urine Concentrazione Arbitraria Punto nel tempo (episodio)
ko-KR Korean (Korea, Republic Of) 백혈구 에스테르분해효소:임의농도:검사시점:뇨:정량:
nl-NL Dutch (Netherlands) leukocytenesterase:eenheid/volume:moment:urine:kwantitatief:
pl-PL Polish (Poland) Leukocytowa esteraza:stężenie w jednostkach umownych:punkt w czasie:mocz:ilościowy:
Synonyms: Leukocytowa esteraza
pt-BR Portuguese (Brazil) Leucócito esterase:ACnc:Pt:Urina:Qn:
Synonyms: ; Est; Arbitrary concentration; Point in time; Random; Ur; UR; Urn; Quantitative; QNT; Quant; Quan; Leucoc; White blood cell; Leuc; Leuk; Lkcs; Leukocytes; White blood cells; Leucocs; URINALYSIS
ru-RU Russian (Russian Federation) Лейкоцитарная эстераза:ПроизвКонц:ТчкВрм:Моча:Колич:
Synonyms: Количественный Произвольная концентрация Точка во времени;Момент
tr-TR Turkish (Turkey) Lökosit esteraz:SçKons:Zmlı:İdrar:Kant:
zh-CN Chinese (China) 白细胞酯酶:任意型浓度:时间点:尿液:定量型:
Synonyms: Leuc Leuk Lkcs WBC WBC Est;WBC 酯酶 WBCs 任意型浓度(单位体积);任意浓度;单位体积的任意单位数;人工型浓度 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 尿;小便;下泉 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 时刻;随机;随意;瞬间 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

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