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HelpTest Code UK24HR Potassium Urine, Timed LAB436
Performing Laboratory
UnityPoint Finley Hospital
Test Method
Indirect 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