Version 2.67 Beta


Basic Attributes

Version First Released
Pending promotion to Production status
Parent Group
LG100-4   Chem_DrugTox_Chal_Sero_Allergy<SAME:Comp|Prop|Tm|Syst (except intravascular and urine)><ANYBldSerPlas,ANYUrineUrineSed><ROLLUP:Method>
Group Category
Flowsheet - laboratory

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LOINC Group Usage Notes

Several authors have studied agreement between arterial and venous blood measurements of potassium with blood gas analyzers and found good intra-patient agreement. [PMID: 15788827] [PMID: 25859448] [PMID: 25885983] However, it is important to remember that the concentration of key electrolytes is influenced by the presence of hemolysis. In vitro hemolysis of red cells in a blood sample will cause release of K+ from RBCs and may produce an artefactual hyperkalemia. Laboratory assays of venous samples are screened for hemolysis, but blood gas electrolyte measurementsmay not be. [PMID: 23314547] [PMID: 23724399]

Analyte (Component) Molecular Weight

39.098 g/mol

LOINC Terms in this Group

2823-3 Potassium [Moles/volume] in Serum or Plasma
32713-0 Potassium [Moles/volume] in Arterial blood
39789-3 Potassium [Moles/volume] in Venous blood
39790-1 Potassium [Moles/volume] in Capillary blood
41656-0 Potassium [Moles/volume] in Mixed venous blood
6298-4 Potassium [Moles/volume] in Blood
77142-8 Potassium [Moles/volume] in Serum, Plasma or Blood