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Lab Dept:
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Urine/Stool
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Test Name:
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CHLORIDE, TIMED URINE
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General Information
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Lab Order Codes:
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UCLQ
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Synonyms:
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Cl Quantitative Urine; Chloride, 24 hour urine
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CPT Codes:
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82436 – Chloride, urine
81050 – Volume measurement for timed collection, each
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Test Includes:
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Urine chloride concentrations in mEq/L and mEq/collection
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Logistics
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Test Indications:
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Chloride is the major extracellular anion which is filtered from the plasma by the kidney glomeruli and is passively reabsorbed in the proximal tubules. Useful in the evaluation of kidney function.
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Lab Testing Sections:
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Chemistry
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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1 day
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Special Instructions:
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Submit an entire 24-hour urine collection. No preservative. Refrigerate specimen during and after collection.
Note: Starting and ending times of collection are required for a timed urine collection and must be documented electronically or on the proper request form.
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Specimen
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Specimen Type:
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Urine, timed collection
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Container:
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Plastic leakproof container (No preservative). Urine GUARD® collection container is preferred for a timed urine sample.
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Draw Volume:
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Submit an entire 24-hour urine collection
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Processed Volume:
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Minimum: 0.5 mL urine
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Collection:
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For timed urine collections, empty the bladder, discard the voided sample, and note the start time. Collect all urine voided for the specified time period. At the end of the period, note the finishing time, add the last voided sample to the container by emptying the bladder. Bring the refrigerated container to the lab. Make sure all specimens submitted to the laboratory are properly labeled with the patient’s name, medical record number and date of birth.
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Special Processing:
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N/A
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Patient Preparation:
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None
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Sample Rejection:
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Unlabeled specimens
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Interpretive
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Reference Range:
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Infants:
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2 – 10 mEq/collection
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Children:
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15 – 40 mEq/collection
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Adults:
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111 – 250 mEq/collection
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Note: The reference values are for a 24 hour collection. Specimens collected for other than a 24-hour time period have no reference values established.
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Critical Values:
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N/A
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Limitations:
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N/A
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Methodology:
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Integrated Multisensor Technology
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Contraindications:
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N/A
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References:
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Tietz (1999) Clinical Guide to Laboratory Tests, 3rd ed, Philadelphia, WB Saunders Company, pp 1063-1065
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Dimension Integrated Multisensor Insert P/N 717500.003 REV.F 05/01
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