Methodology
Gas Chromatography/Mass Spectrometry
Specimen Type
Urine, Random
Performing Lab
UCSD Biochemical Genetics
Epic ID
LAB04032
Lab Test Days
Monday-Friday
Standard TAT
7-9 Days
Stat TAT
4 Days
Collection Information
Specimen Required
10-20 mL Urine
Container Type
Sterile Container
Collection Instructions
Freeze urine immediately.
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Test Volume Required
10-20 mL Urine
Minimum Test Volume
5 mL Urine
Processing Instructions
Complete UCSD Biochemical Genetics requisition and submit with specimen frozen.
Comments
Orotic aciduria may be seen in deficiency of orotate decarboxylase, or following a single does of allopurinol in females who are carriers for ornithine transcarbamylase deficiency.
CPT Codes
83789
Revised
08-10-16
Initials
SL