Methodology
Liquid Chromatography-Tandem Mass Spectometry (LC-MS/MS)
Synonyms
AGAT (Arginine: Glycine Admidinotransferase) Deficiency; CrT1 defect; GAMT (Guanidinoacetate Methyltransferase) Deficiency; Creatine Biosynthesis Disorders Panel
Specimen Type
Urine, Random
Performing Lab
Mayo Medical Lab
Epic ID
LAB07828
Lab Test Days
Tuesday
Standard TAT
10-18 Days
Collection Information
Specimen Required
0.5-1 mL Random Urine
Container Type
Sterile Container
Collection Instructions
Immediately freeze specimen.
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Specimen Stability
Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 29 Days
Test Volume Required
1 mL Random Urine
Minimum Test Volume
0.5 mL Random Urine
Processing Instructions
Immediately freeze specimen.
Included Tests
Creatine, Creatinine and Guanidinoacetate.
CPT Codes
82540, 82570, 82542
Revised
11-04-19
Initials
SL