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Potassium, urine
Test CodeUXKR
Preferred Specimen
Urine, 24 hr or random
Transport Container
Clean container
Transport Temperature
Specimen stable for 4 days if refrigerated.
Reference Range
See report for normal ranges.
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.