Version 2.77

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. [Lab Tests Online:osmolality/tab/glance] Source: Regenstrief LOINC

Reference Information

Type Source Reference
Mapping Guidance Regenstrief Help This term represents directly measured osmolality. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations

Fully-Specified Name


Additional Names

Short Name
Osmolality SerPl
Display Name
Osmolality [Osmolality]
Consumer Name Alpha Get Info
Osmolality, Blood

Basic Attributes

First Released
Version 1.0
Last Updated
Version 2.73
Order vs. Observation
Common Test Rank Get Info

Member of these Panels

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

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Osmolalität:Osmolalität:Zeitpunkt:Serum oder Plasma:Quantitativ:
de-AT German (Austria) Synonyms: Osmolalität
el-GR Greek (Greece) Ωσμωτικότητα:Ωσμωτικότητα:Χρονική στιγμή:Ορός/Πλάσμα:Ποσοτική:
es-MX Spanish (Mexico) Osmolalidad:Osmolalidad:Punto temporal:Suero o Plasma:Cuantitativo:
es-ES Spanish (Spain) Osmolalidad:Osmolalidad:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-AR Spanish (Argentina) osmolalidad:osmolalidad:punto en el tiempo:suero/plasma:cuantitativo:
et-EE Estonian (Estonia) Osmolaalsus:Osmol:Pt:S/P:Qn:
Synonyms: Juhuslik Kvantitatiivne Osmolaalsus Plasma Seerum Seerum või plasma
fr-CA French (Canada) Osmolalité:Osmolalité:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FR French (France) Osmolalité:Osmoles:Ponctuel:Sérum/Plasma:Numérique:
fr-BE French (Belgium) Osmolalité:Osmolalité:Temps ponctuel:Sérum/Plasma:Quantitatif:
it-IT Italian (Italy) Osmolalità:Osmol:Pt:Siero/Plasma:Qn:
Synonyms: Chimica Osmolalità Plasma Punto nel tempo (episodio) Siero Siero o Plasma
ko-KR Korean (Korea, Republic Of) 삼투압:삼투압농도:검사시점:혈청/혈장:정량:
nl-NL Dutch (Netherlands) osmolaliteit:osmolaliteit:moment:serum of plasma:kwantitatief:
pt-BR Portuguese (Brazil) Osmolalidade:Osmol:Pt:Sor/Plas:Qn:
Synonyms: Osmo; osmolarity; Point in time; Random; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Quantitative; QNT; Quant; Quan; Chemistry
ru-RU Russian (Russian Federation) Осмоляльность:Осмол:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Осмоляльность Осмотическая концентрация;Осмотическое давление Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TR Turkish (Turkey) Ozmolalite:Ozmol:Zmlı:Ser/Plaz:Kant:
uk-UA Ukrainian (Ukraine) Осмоляльність:Осмоляльність:МоментЧасу:Сироватка/Плазма:Кількісно:
Synonyms: Chemistry; Osmo; Osmol; Osmolality; osmolarity; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; UniversalLabOrders
zh-CN Chinese (China) 渗透压:渗透压:时间点:血清/血浆:定量型:
Synonyms: 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 化学;化学检验项目;化学检验项目类;化学类;化学试验;非刺激耐受型化学检验项目;非刺激耐受型化学检验项目类;非刺激耐受型化学试验;非刺激耐受型化学试验类 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 时刻;随机;随意;瞬间 血清或血浆

Example Units

Unit Source
mmol/kg H2O eCHN
mosm/kg Example UCUM Units

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

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