Test Overview
Test Methodology
Potentiometric (ISE)
Test Usage
Evaluate electrolyte balance
Reference Range *
<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
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Daily, 24 hours
Analytic Time
2 hours
Soft Order Code
POTPL
MiChart Code
Potassium Level, Plasma
Laboratory
Chemical Pathology
Section
Automation
STAT Availability
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Specimen Requirements
Collection Instructions
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.
Rejection Criteria
Grossly hemolyzed samples are unacceptable for analysis.
Normal Volume
0.5 mL plasma
Minimum Volume
0.25 mL plasma
Billing
CPT Code
84132
Fee Code
20507
LOINC
2823-3