Potassium, 24 Hour Urine with Creatinine

CPT Code(s):

  • 82570
  • 84133

Preferred Specimen:

10 mL aliquot 24 Hours specimen. No preservative.

Minimum Volume:

0.5 mL

Special Instructions:

The request form must state date and time collection started, date and time collection finished, and urine volume.

Transport Container:

Plastic urine container, no preservative

Transport Temperature Name:

Refrigerate

Specimen Stability Components:

  • Refrigerated: 5 days

Testing Schedule:

Daily

Methodology:

Ion Selective Electrode (ISE)

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