Unit Code 9253:
Homovanillic Acid (HVA), Urine
Useful For 
Suggests clinical disorders or settings where the test may be helpful
Screening for catecholamine-secreting tumors in children when
accompanied by vanillylmandelic acid (VMA)
Monitoring treated neuroblastoma patients
Evaluating patients with possible inborn errors of catecholamine
metabolism
Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test
Method Name A short description of the method used to perform the test
Liquid Chromatography-Tandem Mass Spectrometry
(LC-MS/MS) Stable Isotope Dilution Analysis
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
Homovanillic Acid (HVA), U
Ordering Mnemonic An alternate Mayo code (to the Unit Code) for a test
HVA
Aliases Lists additional common names for a test, as an aid in searching
HVA (Homovanillic Acid)
Neuroblastoma Profile (9253 & 9454)
Soft-HVA
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