Specimen:
Collect
- Timed Urine in Timed Urine Container
Also Acceptable:
- Random Urine in Sterile Specimen Container
Submit
- 4 mL (Min:0.5 mL) Aliquot(s) Timed Urine in Trace Element Free Tube. Submit Refrigerated.
Also Acceptable:
- 4 mL (Min:0.5 mL) Random Urine in Trace Element Free Tube. Submit Refrigerated.
Special Handling
- Keep Specimen Refrigerated During Collection
- State Collection Time
- State Volume
- Adjust pH to 1 by adding 6M HCl (approximately 10 mL HCl/24-hour specimen based on normal adult output of 1000-2000 mL/24 hours. Pediatric specimens will require less than 10 mL to reach the correct pH).
Transfer 4 mL aliquot of urine from a well-mixed 24-hour collection to an Standard Transport Tube. (Min: 0.5 mL)
Rejection Criteria
- Specimens containing preservatives
Stability
Ambient: 3 Day(s); Refrigerated: 2 Week(s); Frozen: 12 Month(s); Incubated: Unacceptable
Methodology
- Quantitative Spectrophotometry
Performed
Sun-Sat
Reported
1-2 Day(s)
CPT Codes
- 83735
Interpretive Data
Please see report for interpretive data.
Components
- 93008 - CREAT, UR
- 93009 - CREATININE
- 93010 - MAGNESIUM, UR
- 93011 - MAGNESIUM, UR
- 93388 - URINE VOLUME
- 93518 - HOURS COLLECTED
Last Updated: February 7, 2025 @ 10:13 am
Disclaimer:
It is preferable to locate tests on the website and not rely on printed test information, which may soon be out of date. Updated test information can only be guaranteed by using this website.
