Laboratory: Clinical Biochemistry
Test Name:
Test Code: KU
Clinical Information:
Potassium is the primary intracellular cation and is critical to nerve and muscle cell activity. The kidneys provide potassium regulatory control. Measurement of urine potassium is important for the assessment of electrolyte balance and the differentiation of renal vs. nonrenal potassium loss.
Collection Devices:
Collect 24h urine without preservative. Refrigerate 24h and random urine specimens until analysis.
Similar lab approved leak-proof containers acceptable.
Specimen Required:
Urine: 3.0 mL

Stability 7 days refrigerated, 6 months frozen
Reference Values:
40-80 mmol/d
Stat or Routine
See Also:
More Information: