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HelpTest Code 720 Potassium Urine, Timed
Additional Codes
ALAB: KUT
PowerChart: Potassium Urine Timed
MA Cerner: Urine Potassium Timed
Test Method
MercyOne: Ion Selective Electrode Method; Beckman DxC700AU
MA: Ion-Selective Electrode (ISE) Method; Roche Cobas 6000
Specimen Requirement
0.5 mL urine is required.
Additional Specimen Collection Information
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.
Performance
Testing is performed Monday through Sunday.
Typically assayed within 2 hours after the specimen arrives at the testing site.
Reference Values
40-89 meq/24 Hours
CPT Code Information
84133 Chemistry: Potassium; urine
Useful For
Urine K+ is useful in determining the cause for hyper- or hypokalemia.
LOINC Code Information
2829-0 Potassium [Moles/Time] In 24 Hour Urine