VMA and HVA, Child VMAHVA

Synonyms
Allscripts (AEHR) Order Name	VMA and HVA, Child
Sunrise Clinical Manager (SCM) Order Name	VMA and HVA, Child
EPIC Order Name	Random Urine, Vanillylmandelic Acid and Homovanillic Acid
Clinical Info	First preferred test for screening for catecholamine-secreting tumors in a random urine specimen when requesting both homovanillic acid and vanillylmandelic acid Supporting a diagnosis of neuroblastoma Monitoring patients with a treated neuroblastoma
Specimen Type	Urine
Container	Urine Cntr
Collection Instructions	Container/Tube: Sterile cup Volume: 5 mL random urine (2 mL min) Collection Instructions: 1. Collect a random urine specimen. 2. Adjust urine pH to 1 to 5 with 50% acetic or hydrochloric acid. Patient Preparation: 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.
Transport Instructions	Refrigerated
Specimen Stability	28 days Refrigerated 180 Days Frozen
Methodology	Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Days Performed	TAT: 4-6 Days
Performing Laboratory	Mayo Medical Laboratories
CPT	83150-HVA 84585-VMA LOINC Code: 90250-2
PDM	5908565
Result Interpretation VANILLYLMANDELIC ACID <1 year: <25.0 mg/g creatinine 1 year: <22.5 mg/g creatinine 2-4 years: <16.0 mg/g creatinine 5-9 years: <12.0 mg/g creatinine 10-14 years: <8.0 mg/g creatinine > or =15 years: <7.0 mg/g creatinine HOMOVANILIC ACID <1 year: <35.0 mg/g creatinine 1 year: <30.0 mg/g creatinine 2-4 years: <25.0 mg/g creatinine 5-9 years: <15.0 mg/g creatinine 10-14 years: <9.0 mg/g creatinine > or =15 years: <8.0 mg/g creatinine
Forms