Sodium, Random, Urine
Use
The Sodium, Random, Urine test is useful for assessing several clinical conditions related to fluid and electrolyte balance. These include acid-base balance, water balance, water intoxication, and dehydration. Sodium, being the primary extracellular cation, plays a crucial role in maintaining the normal distribution of water and osmotic pressure in the extracellular fluid compartment. The test helps in determining the body's sodium levels in relation to intake and output, which can be critical for diagnosing and managing various health issues.
Special Instructions
This test requires the collection of a random urine specimen without any preservative. Use the Sarstedt 5 mL Aliquot Tube for collection and keep the specimen refrigerated if possible. Ensure that the specimen volume is adequate to provide reliable results.
Limitations
There are no significant cautionary statements for this test; however, as with any test, improper specimen collection and handling can lead to inaccurate results. Additionally, results should be interpreted in conjunction with serum sodium levels for a more comprehensive understanding of sodium balance.
FDA ApprovedNew York Approved
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
LOINC Codes
- 2955-3
- 2955-3
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
4 mL
Minimum Volume
1 mL
Container
Plastic, 5-mL tube
Collection Instructions
Collect a random urine specimen without any preservative. Use a Sarstedt 5 mL Aliquot Tube for collection.
Storage Instructions
Refrigerate the specimen if possible. Stability at room temperature is 7 days, refrigerated is 14 days, and frozen is 30 days.
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 |