91159      Magnesium, Urine
Specimen:
  Collect: Timed Urine

Also Acceptable
Random Urine  
  Submit: 4 mL (Min:0.5 mL) Aliquot(s) Timed Urine. Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable
4 mL (Min:0.5 mL) Random Urine. Submit Refrigerated. Submit in a Standard Transport Tube. 
  Special Handling: Keep Specimen Refrigerated During Collection
State Collection Time
State Volume
Collect in plastic container only
Adjust pH to 1 with 6M HCl
Stability: Ambient 1 week if acidified 
  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 - CREAT, UR
93010 - MAGNESIUM, UR 93011 - MAGNESIUM, UR
93388 - URINE VOLUME93518 - HOURS COLLECTED