Test ID: ZH365
CPT code: 83919
LOINC:
Specimen Type: Plastic Random urine container, no preservative
Frequency: 3 – 7 days
Instructions: 10 mL Urine from Plastic urine container, no preservative, Frozen. Min 3 mL.
Text: Urine organic acid testing is useful in the diagnosis & monitoring of patients with inborn errors of organic acid metabolism, inborn errors of amino acid metabolism, urea cycle defects, & defects of the mitochondrial respiratory chain. Analysis may fail to detect certain disorders that are characterized by minimal or intermittent metabolite excretion.
Methodology: Gas chromatography/mass spectrometry (GC/MS)