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Test Code UK24HR Potassium Urine, Timed LAB436

Performing Laboratory

UnityPoint The Finley Hospital

Test Method

Ion Selective Electrode; Roche cobas Pro

Performance

Testing is performed Monday through Sunday.

Typically assayed within 2 hours after the specimen arrives
at the testing site.

Specimen Requirement

0.5 mL urine is required.

Collect a urine specimen for the prescribed time period. No
preservative is required. Label the specimen appropriately with two
identifiers, patient name and another identifier, (patient ID
number, DOB, etc.) include date and time of collection. Store the
urine specimen refrigerated and transport to the lab within 48
hours.

Useful For

Urine K+ is useful in determining the cause for hyper- or
hypokalemia.

Reference Values

25-125 mmol/24 hours

CPT Code Information

84133 Chemistry: Potassium; urine

LOINC Code Information

2829-0 Potassium [Moles/Time] In 24 Hour Urine