Electrolyte abnormalities are common in both outpatient and inpatient settings. Uncorrected electrolyte abnormalities may have life-threatening consequences. Important electrolytes include calcium (Ca), potassium (K), sodium (Na), and magnesium (Mg).
ARUP Lab Tests
Evaluate electrolyte abnormalities and underlying hepatic or renal dysfunction
Quantitative Ion-Selective Electrode/Quantitative Enzymatic/Quantitative Spectrophotometry
Panel includes albumin, alkaline phosphatase, aspartate aminotransferase, alanine aminotransferase, bilirubin, Ca, carbon dioxide, creatinine, chloride, glucose, K, protein, Na, and urea nitrogen
Evaluate Mg concentrations in blood
Evaluate for kidney dysfunction in patients with known risk factors (eg, hypertension, diabetes, obesity, family history of kidney disease)
Diagnose and manage diabetes mellitus and other carbohydrate metabolism disorders
Use to correct for hypoalbuminemia on serum Ca level
Determine Ca concentrations
Asses Ca status
Use for classification of Na disorders and evaluation of unmeasured ions
May be useful in assessment of tissue stores
For routine assessment of Mg deficiency, plasma or serum Mg is preferred
Bosworth M, Mouw D, Skolnik DC , et al. Clinical inquiries: what is the best workup for hypocalcemia? J Fam Pract. 2008; 57 (10): 677-9.