Laboratory Test Detail

Last Updated: December 3, 2021 @ 10:13 am

91159

Magnesium, Urine

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: 1 Week(s); Refrigerated: 1 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
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