Stanford Hospital & Clinics and Lucile Packard Children’s Hospital
Test Name : VMA and HVA, Pediatric, Random Urine Order Code : 12845R
Note: This is a Sendout/Referred Test and is only offered to registered patients of SHC or LPCH.
Synonyms: Neuroblastoma; HVA (Homovanillic Acid); VMA (Vanillylmandelic Acid)
Specimen Type: Random Urine
Container Type: Urine container
Required Volume: 10 mL
Minimum Volume (Pediatric): 4 mL
Methodology: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Standard Run Times: Mon-Sat 8am
Turnaround Time: 6 days
Special Handling: Transport refrigerated (frozen acceptable). This collection is performed only on children <15 years of age. Collect a random urine specimen. Adjust urine pH to 1 to 5 with 50% acetic or HCl acid. Patient's age is required. Administration of L-dopa may falsely increase homovanillic acid and vanillylmandelic acid results; it should be discontinued 24 hours prior to and during collection of specimen.
CPT Codes: 83150, 84585
SHC EPIC Code: LAB12845R
Department: Sendouts
Clinical Specialties: Oncology
Sendout Lab: Mayo Medical Laboratories
Sendout Lab Test Code: VH