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Part Description

LP15272-5   Osmolality
Osmolality is the concentration of dissolved substances contained in bodily fluids. An osmolality test can be conducted by measuring the number of particles per kilogram in a sample of fluid (blood, urine, or stool). This test is performed in order to evaluate kidney function and the body's electrolyte/water balance. Typically, osmolality is tested if an individual shows signs of low blood sodium concentration (hyponatremia), alcohol poisoning, an increase/decrease in urine, or chronic diarrhea. When analyzing osmolality, the following particles can be observed in the fluids: sodium, potassium, chlorine, urea, and glucose. Although osmolality tests are able to indicate a water imbalance, the test alone can be inconclusive as to which particular solute is the cause of the health problem. Source: Regenstrief LOINC

LOINC Names Get Info

Fully-Specified Name
Osmolality^post 4H FFst:Osmol:Pt:Urine:Qn:
Long Common Name
Osmolality of Urine--4 hours post fluid fast
Short Name
Osmolality p 4h FFST Ur
Display Name
Osmolality post 4 Hr fluid fast (U) [Osmolality]
Consumer Name Alpha Get Info
Osmolality after 4 hr fluid fast, Urine

Part Model Get Info

  • Component
    Osmolality^post 4H FFst
    LP306570-5
    • Analyte
      Osmolality
      LP15272-5
      • Component Numerator
        Osmolality
        LP15272-5
        • Component Numerator Core
          Osmolality
          LP15272-5
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      post 4H FFst
      LP94562-3
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Osmol
    LP6843-9
  • Time
    Pt
    LP6960-1
  • System
    Urine
    LP7681-2
    • System Core
      Urine
      LP7681-2
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
CHAL
Type
Laboratory
First Released
Version 2.27
Last Updated
Version 2.40 (MIN)
Order vs. Observation
Observation

Member of these Panels

LOINCLong Common Name
94129-4Water deprivation challenge panel - Urine and Serum or Plasma

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Osmolalita^Po 4 hodinách lačnění:Osmolalita:Časový bod:Moč:Kvantitativní:
el-GRGreek (Greece)Ωσμωτικότητα^κατόπιν 4 ωρών χωρίς πρόσληψη υγρών:Osmol:Pt:Ούρα:Qn:
Synonyms: CHAL Osmol Pt Qn κατόπιν 4 ωρών χωρίς πρόσληψη υγρών Ούρα Ωσμωτικότητα
es-ESSpanish (Spain)Osmolalidad^pos 4H FFst:Osmolalidad:Punto temporal:Orina:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Osmolalidad ^post 4H FFst:Osmolalidad:Punto temporal:Orina:Cuantitativo:
fr-CAFrench (Canada)Osmolalité^post 4 h sans liquide:Osmolalité:Temps ponctuel:Urine:Quantitatif:
fr-FRFrench (France)Osmolalité^T04h après restriction hydrique:Osmoles:Ponctuel:Urine:Numérique:
fr-BEFrench (Belgium)Osmolalité^Post 4 h sans liquide:Osmolalité:Temps ponctuel:Urine:Quantitatif:
it-ITItalian (Italy)Osmolalità^post 4h digiuno da liquidi:Osmol:Pt:Urine:Qn:
Synonyms: 4 ore dopo digiuno da liquidi Osmolalità Punto nel tempo (episodio) Test di provocazione
nl-NLDutch (Netherlands)osmolaliteit^na 4 uur geen vocht:osmolaliteit:moment:urine:kwantitatief:
Synonyms: na 4U geen vocht
pt-BRPortuguese (Brazil)Osmolalidade^após 4 hs de não ingestão de líquidos:#N/A:Pt:Urina:Qn:
Synonyms: Osmo; osmolarity; p 4H FFST; Point in time; Random; Ur; UR; Urn; UA; Quantitative; QNT; Quant; Quan; PST; After; CHEMISTRY.CHALLENGE TESTING; CHEMISTRY.CHALLENGE TESTING
ru-RURussian (Russian Federation)Осмоляльность^после 4 часов ЖГол:Осмол:ТчкВрм:Моча:Колич:
Synonyms: 4 часа после жидкость голодание; после 4 часов алиментарной дегидратации Количественный Осмоляльность Осмотическая концентрация;Осмотическое давление Точка во времени;Момент
tr-TRTurkish (Turkey)Ozmolalite^snr 4Sa SvYas:Ozmol:Zmlı:İdrar:Kant:
zh-CNChinese (China)渗透压^在液体型禁食之后4小时:渗透压:时间点:尿液:定量型:
Synonyms: 4Hr之后于FFST;4小时之后于液体型禁食;4小时之后于进水限制;在FFST之后4Hr;在进水限制之后4小时 MO;单位质量溶剂之中溶质的渗透摩尔数;Osm/Kg;measured osmolality;渗透浓度;渗透度;溶质度;重量克分子渗透压浓度;同渗重摩;Osmo;Osmol;克分子渗透压浓度;摩尔渗透压浓度 XXX刺激 - 在...之后 之后于... 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 尿;小便;下泉 时刻;随机;随意;瞬间

Example Units

UnitSource
mosm/kgExample UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=55354-5