Evaluate electrolyte balance
<1 year: 2.6 - 5.5 mmol/L, 1-11 years: 3.3 - 5.0 mmol/L, 12-150 years: 3.5 - 5.0 mmol/L
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Collect specimen in green top heparin tube. Centrifuge within 4 hours of collection, aliquot plasma into a plastic vial and refrigerate. If specimen cannot be centrifuged at client site, please arrange for delivery to MLabs within 3 hours of specimen collection. Grossly hemolyzed samples are unacceptable for analysis.