Chloride, Random, Urine
Use
Chloride is the major extracellular anion. It is involved in maintaining osmotic pressure, proper body hydration, and electric neutrality. Urinary chloride excretion during steady state conditions will reflect ingested chloride, primarily in the form of sodium chloride. During states of extracellular volume depletion, urine chloride excretion is reduced. This test is useful as an indicator of fluid balance and acid-base homeostasis.
Special Instructions
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request with the specimen. Collect a random urine specimen with no preservative using a Sarstedt 5 mL Aliquot Tube.
Limitations
High urine values of other halide ions such as bromide, fluoride, and iodide may lead to falsely high readings on the chloride ion-selective electrode.
New York Approved
Methodology
Automated Analyzer
Biomarkers
LOINC Codes
- 2078-4
- 2078-4
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
5 mL
Minimum Volume
1 mL
Container
Plastic, 5-mL tube
Collection Instructions
Collect a random urine specimen. No preservative.
Causes for Rejection
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 14 days |
| Frozen | 30 days |