Test ID: Z5461
CPT code: 84585
LOINC: 3124-5
Specimen Type: Random Urine
Frequency: Setup: Mon-Sat; Analytic time 2 days
Instructions: 5.0mL random urine. pH to between 1 and 5 with 50% acetic acid.
Refrigerate.
Text: Administration of L-dopa may falsely increase vanillylmandelic acid
results; it should be discontinued 24 hours prior to and during
collection of specimen.
Methodology: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)