Version 2.77

Term Description

Calculated from glucose, bun, and sodium
Source: Regenstrief LOINC

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 osmolality calculated from a formula based on sodium, glucose and urea nitrogen concentrations. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations

Fully-Specified Name

Component
Osmolality
Property
Osmol
Time
Pt
System
Ser/Plas
Scale
Qn
Method
Calculated

Additional Names

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

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0l
Last Updated
Version 2.73
Order vs. Observation
Observation
Common Test Rank Get Info
825

Formula (Readable)

(Na [mmol/L] x 2) + (Urea [mg/dL]/2.8) + (glucose [mg/dL]/18)

Language Variants Get Info

Tag Language Translation
de-AT German (Austria) Synonyms: Osmolalität kalk.
de-DE German (Germany) Osmolalität:Osmolalität:Zeitpunkt:Serum oder Plasma:Quantitativ:Berechnet
es-AR Spanish (Argentina) osmolalidad:osmolalidad:punto en el tiempo:suero/plasma:cuantitativo:calculado
es-ES Spanish (Spain) Osmolalidad:Osmolalidad:Punto temporal:Suero o Plasma:Qn:Calculado
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Osmolalidad:Osmolalidad:Punto temporal:Suero o Plasma:Cuantitativo:Calculado
et-EE Estonian (Estonia) Osmolaalsus:Osmol:Pt:S/P:Qn:Arvutuslik
Synonyms: Juhuslik Kvantitatiivne Osmolaalsus Plasma Seerum Seerum või plasma
fr-CA French (Canada) Osmolalité:Osmolalité:Temps ponctuel:Sérum/Plasma:Quantitatif:Calculé
fr-FR French (France) Osmolalité:Osmoles:Ponctuel:Sérum/Plasma:Numérique:Résultat calculé
fr-BE French (Belgium) Osmolalité:Osmolalité:Temps ponctuel:Sérum/Plasma:Quantitatif:Calculé
it-IT Italian (Italy) Osmolalità:Osmol:Pt:Siero/Plasma:Qn:Calcolato
Synonyms: Chimica Osmolalità Plasma Punto nel tempo (episodio) Siero Siero o Plasma
ko-KR Korean (Korea, Republic Of) 삼투압:삼투압농도:검사시점:혈청/혈장:정량:계산된
nl-NL Dutch (Netherlands) osmolaliteit:osmolaliteit:moment:serum of plasma:kwantitatief:berekend
pt-BR Portuguese (Brazil) Osmolalidade:Osmol:Pt:Sor/Plas:Qn:Calculado
Synonyms: Osmo; osmolarity; Point in time; Random; SerPl; SerPlas; SerP; Serum; SR; Plasma; Pl; Plsm; Quantitative; QNT; Quant; Quan; Calc; Calculation; Chemistry
ru-RU Russian (Russian Federation) Осмоляльность:Осмол:ТчкВрм:Сыв/Плаз:Колич:Вычисленный
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:Hesaplanmış
zh-CN Chinese (China) 渗透压:渗透压:时间点:血清/血浆:定量型:计算法
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 计算;计算型方法

Example Units

Unit Source
mosm/kg Example UCUM Units
mosm/kg eCHN
mOsmol/kg REGENSTRIEF

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=18182-6