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- Test Details
- Lab Values
- Clinical Significance
- Treatment Options
Potassium is an electrolyte vital to cell metabolism.
Ion Selective Electrode (ISE)
1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST/Tiger Top)
Refrigerated (ship on frozen cold packs)
Refrigerated: 14 days
- Low: <3.5 mmol/L
- Normal: 3.5-5.3 mmol/L
- High: >5.3 mmol/L
- Alert: ≤2.5 or ≥6.0 mmol/L
- May be used to diagnose and evaluate hypertension, diabetic ketoacidosis, kidney disease, and to monitor patient receiving dialysis, diuretics, or IV therapy.
- Elevated levels could indicate excessive potassium intake, kidney disease, diabetes, and dehydration.
- Low levels of potassium could indicate dehydration or acetaminophen overdose.
Assess etiology of elevation such as dehydration, vomiting, medications and kidney problems that may be result of abnormal electrolyte imbalance.