LOINC
Version 2.73

73581-1Anion gap 4 in Arterial bloodActive

Part Description

LP15392-1   Anion gap 4
Anion Gap 4 is the difference between the sum of serum sodium + serum potasium and the sum of the serum bicarbonate+ chloride. Calculated based on the concentration of four electrolytes as follows: ([Na+] + [K+]) − ([Cl−] + [HCO3−]). An increased gap indicates the presence of an unmeasured anion. Source: Regenstrief Institute

Fully-Specified Name

Component
Anion gap 4
Property
SCnc
Time
Pt
System
BldA
Scale
Qn
Method

Additional Names

Short Name
Anion Gap4 BldA-sCnc
Display Name
Anion gap 4 (BldA) [Moles/Vol]
Consumer Name Alpha
Anion gap 4, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.44
Last Updated
Version 2.73
Order vs. Observation
Both
Common US Lab Results Rank
18817

Formula (Readable)

Anion gap 4 = ([Na+] + [K+]) - ([Cl-] + [HCO3-])

Member of these Groups

LG6139-2 Anion gap 4|SCnc|Pt|ANYBldSerPl

Language Variants Get Info

zh-CNChinese (China)
阴离子间隙 4:物质的量浓度:时间点:动脉全血:定量型:
nl-NLDutch (Netherlands)
anion gap 4:mol/volume:moment:arterieel bloed:kwantitatief:
et-EEEstonian (Estonia)
Anioonide vahe 4:SCnc:Pt:aB:Qn:
fr-BEFrench (Belgium)
Trou anionique 4:Concentration de substance:Temps ponctuel:Sang artériel:Quantitatif:
fr-CAFrench (Canada)
Trou anionique 4:Concentration de substance:Temps ponctuel:Sang artériel:Quantitatif:
fr-FRFrench (France)
Balance ionique 4:Moles/Volume:Ponctuel:Sang artériel:Numérique:
it-ITItalian (Italy)
Gap anionico 4:SCnc:Pt:Sangue art:Qn:
pt-BRPortuguese (Brazil)
Anion gap 4::Pt:SgArt:Qn:
ru-RURussian (Russian Federation)
Анионный интервал 4:МолКонц:ТчкВрм:КрА:Колич:
es-MXSpanish (Mexico)
Brecha aniónica 4:Concentración de sustancias:Punto temporal:Sangre arterial:Cuantitativo:
es-ESSpanish (Spain)
Anión GAP 4:Concentración de sustancia:Punto temporal:Sangre arterial:Qn:
tr-TRTurkish (Turkey)
Anyon açığı 4:SubKons:Zmlı:KanArt:Kant:

Example Units

Unit Source
mmol/L Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=73581-1