The University of Iowa (UIHC)
Department of Pathology
LABORATORY SERVICES HANDBOOK


Vanillylmandelic Acid (VMA)
Order Code: VMANBSU
Epic Lab Code: LAB452
Order Form: A-1a General Lab or Epic Req
  Commercial "Mail-out" Laboratory
6240 RCP
356-3527
Specimen:
Urine More information
Collection Medium:
Urine - 24 hour/timed urine glass container with acid
Minimum:
For peds, contact Pharmacy for correct amount of concentrated HCl.
Children 5 years and under suggest: 1 mL 6 N HC1 for every 100 mL urine 
produced.

Adult minimum:  10 mL of a well-mixed 24 hr urine collected with 25 mL 
6N HCl as preservative (preferred) or random urine.
Pediatric minimum:  5 mL aliquot of 24 hr collection.
Specimen
Instructions:
Collection containers available from pharmacy.
Analytic Time:
1 week - 10 days
Reference Range:
By report.
Comments:
If screening for Neuroblastoma, the following tests need to be ordered: 
CATNBSU (Catecholamines, Fractionated), DOPNBSU (Dopamine), HVANBSU 
(Homovanillic Acid), METNBSU (Metanephrines), VMANBSU (Vanillylmandelic 
Acid).

VMA, Catecholamines, HVA, Dopamine and Metanephrines may be done on 
same collection.  All five tests may be done on same collection.
Methodology:
Resin column extraction; HPLC electrochemical detector
CPT Code:
82570, 84585
 
See also:
Catecholamines, Fractionated, Urine
Dopamine, Urine
Homovanillic Acid (HVA), Urine
Metanephrines, Urine
Neuroblastoma Screen, Urine
 
See Additional Information:
Urine Tests Requiring Preservatives, Refrigeration or Special Containers

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Updated: 11/18/2009

Note: The information contained in this handbook is for use by personnel of University of Iowa Health Care. No other use is implied or intended.