Preferred Specimen(s) 2.0 mL Urine
Transport Container Plastic Screw cap vial
Transport Temperature
- Ambient 7 days,
- Refrigerated, stable 7 day’s
Methodology Spectrophotometry
Clinical Significance Urinary excretion of potassium is increased in primary aldosteronism. It is often increased in dehydration and in salicylate toxicity. Decreased levels are seen in malabsorption.