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Test Code UCL24H Chloride Urine 24 HR, LAB2074

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: 24-hour urine collection

Specimen Volume: 0.5 mL from a 24-hour timed urine collection. No preservative.

                                 Refrigerate specimen during collection, and send specimen refrigerated.

Stability: Store at 2-8ºC or frozen for delayed analysis.

Collection Instructions: Obtain 24-hour urine jug from laboratory

Note: Starting and ending times of collection are required.

Reference Values

110-250 mmol/24 hours

Useful For

Chloride measurements are used in the diagnosis and treatment of electrolyte and metabolic disorders such as cystic fibrosis and diabetic acidosis. 

Day(s) Test Set Up

Monday through Sunday


Indirect Potentiometric

Test Classification and CPT Coding

81050-Timed urine measurement