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Term Description

This test measures the leucine level in children who have been diagnosed with maple syrup urine disease and are on a therapeutic diet for their condition. Dried blood spot specimens are sent to the lab for monitoring tests periodically. Depending on the lab, the leucine level may be used in combination with alloisoleucine, isoleucine, hydroxyproline and/or valine levels to monitor the patient's progress.

Part Descriptions

LP15699-9   Leucine
Leucine, an essential amino acid isomeric with isoleucine, is the most common amino acid found in proteins. It is required for optimal growth in infancy and childhood and for nitrogen equilibrium in adults. It is also involved in maintaining muscles mass by equalizing synthesis and breakdown of proteins. The major food sources of leucine are whole grains, milk and milk products, eggs, meat, soy beans, and leafy vegetables. Leucine toxicity, as seen in decompensated Maple Syrup Urine Disease (MSUD), causes delirium and neurologic compromise, and can be life-threatening. 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, Leucine (Wikipedia)

LP15699-9   Leucine
An essential branched-chain amino acid important for hemoglobin formation. Source: National Library of Medicine, MeSH 2006

LP15699-9   Leucine
Leucine is an essential nonpolar hydrophobic amino acid with a nonpolar branched-chain R group. It is increased with Maple Syrup Urine Disease (MSUD). (Information from ARUP Laboratories 9/14/06) Source: Regenstrief Institute

LOINC Names Get Info

Fully-Specified Name
Leucine^post therapeutic diet:SCnc:Pt:Bld.dot:Qn:
Long Common Name
Leucine [Moles/volume] in DBS --post therapeutic diet
Short Name
Leucine p diet DBS-sCnc
Display Name
Leucine post therapeutic diet (DBS) [Moles/Vol]
Consumer Name Alpha Get Info
Leucine after Therapeutic Diet, Dried blood spot

Part Model Get Info

  • Component
    Leucine^post therapeutic diet
    LP306467-4
    • Analyte
      Leucine
      LP15699-9
      • Component Numerator
        Leucine
        LP15699-9
        • Component Numerator Core
          Leucine
          LP15699-9
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      post therapeutic diet
      LP174563-9
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    SCnc
    LP6860-3
  • Time
    Pt
    LP6960-1
  • System
    Bld.dot
    LP21304-8
    • System Core
      Bld.dot
      LP21304-8
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
CHAL
Type
Laboratory
First Released
Version 2.48
Last Updated
Version 2.61 (MIN)
Order vs. Observation
Both

Member of these Panels

LOINCLong Common Name
74874-9Metabolic disorder therapy monitoring panel - DBS

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Leucin^Po terapeutická dietě:Látková koncentrace:Časový bod:Suchá krevní kapka (DBS):Kvantitativní:
el-GRGreek (Greece)Λευκίνη^κατόπιν θεραπευτικής διατροφής:SCnc:Pt:Bld.dot:Qn:
Synonyms: Bld.dot CHAL Pt Qn SCnc Αίμα Δίαιτα κατόπιν θεραπευτικής διατροφής Λευκίνη
es-ESSpanish (Spain)Leucina^post dieta terapéutica:Concentración de sustancia:Punto temporal:gota de sangre (papel de filtro):Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Leucina ^ dieta posterapéutica:Concentración de sustancias:Punto temporal:DBS:Cuantitativo:
fr-FRFrench (France)Leucine^après régime thérapeutique:Moles/Volume:Ponctuel:Sang buvard:Numérique:
it-ITItalian (Italy)Leucina^dieta post terapia:SCnc:Pt:Sangue.su carta da filtro:Qn:
Synonyms: Concentrazione di Sostanza Punto nel tempo (episodio) Sangue Spot sangue secco Test di provocazione
nl-NLDutch (Netherlands)leucine^na therapeutisch dieet:mol/volume:moment:gedroogde bloedspot:kwantitatief:
ru-RURussian (Russian Federation)Лейцин^после терапевтической диеты:МолКонц:ТчкВрм:Кр.Сух.капл:Колич:
Synonyms: Количественный Кровь Кровь сухая капля Молярность;Молярная объёмная концентрация Точка во времени;Момент
tr-TRTurkish (Turkey)lösin^terapötik diyet snr:SubKons:Zmlı:Kan.nokta:Kant:
zh-CNChinese (China)亮氨酸^在治疗性饮食之后:物质的量浓度:时间点:全血.斑点:定量型:
Synonyms: Leu;异己氨酸;白氨酸 XXX刺激 - 在...之后 之后于... 克分子浓度;克分子浓度(单位体积);摩尔浓度;摩尔浓度(单位体积);物质的量浓度(单位体积) 全血斑点(滤纸);滤纸;血液.斑点;血液斑点(滤纸) 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 在...以后 在后 时刻;随机;随意;瞬间 治疗 治疗性的 治疗性饮食之后;之后于治疗性饮食;在治疗性饮食（治疗膳食、治疗饮食、治疗用饮食、食饵疗法饲料、疗用饲粮）之后 治疗的 疗效饮食;食饵疗法饲料;治疗膳食;治疗饮食 血;血液 饮食;日常饮食;日常食物;规定饮食;食谱

Example Units

UnitSource
umol/LExample UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=74882-2