Centralized Core Laboratory:Chemistry
4.0 mL (minimum 2.5 mL) random urine
Sent to reference lab
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) Stable Isotope Dilution Analysis
Have patient fast overnight and discard first morning urine specimen. Have patient continue to fast and collect next random specimen. Place on ice and deliver to lab promptly.
For Outpatients, test should only be drawn in outpatient locations within a Hospital (Akron or Beeghly).
Reference range: 0-9 mcmol/gram of creatinine