24 Hour Urine, Vanillylmandelic Acid (VMA)

Synonyms

  • LAB452
  • VANILLYLMANDELIC ACID, URINE
  • VANILLYLMANDELIC ACID, URINE 24 HOUR
  • VANILMANDELIC ACID
  • VMA, URINE, 24 HOUR

Cerner Name

Vanillylmandelic Acid 24hr Urine

Clinical Info

Diagnose pheochromocytoma, VMA is of value for evaluation of hypertension, diagnose and follow up neuroblastoma, ganglioneuroma, and ganglioneuroblastoma. Most neuroblastoma patients excrete excess HVA in 24-hour collections. If VMA and HVA are both used in work-up, up to 80% of all cases will be detected.
 

Specimen Sources

Urine, Catheter Urine, Clean Catch

Specimen Types

Urine

Specimen Volume

Send entire container or 4mL well mixed aliquot- Indicate TV on the cup or tube.

Container

24hr Ur No Preserv

Collection Instructions

Container/Tube:  24 Hr Urine Container No preservative
Specimen: Send entire container or 4mL well mixed aliquot- Indicate TV on the cup or tube.
Transport Temperature: Refrigerated
Stability: 7 Days Room Temperature
               14 Days Refrigerated or Frozen
Patient Preparation:  Patient should avoid salicylates, caffeine, phenothiazine, and antihypertension agents. Also coffee, tea, chocolate, fruit (especially bananas and any vanilla containing substances for 72 hours prior to collection).
Collection:  Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine, including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning).

Transport Instructions

Refrigerated

Specimen Stability

7 Days Room Temperature
               14 Days Refrigerated or Frozen
Patient Preparation:  Patient should avoid salicylates, caffeine, phenothiazine, and antihypertension agents. Also coffee, tea, chocolate, fruit (especially bananas and any van

Methodology

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Days Performed

Performing Laboratories

LabCorp

CPT

84585

PDM

5900026

Results
Component Name Base Name Common Name External Name
VANILLYLMANDELIC ACID, 24 HR URINE VANHR VANILLYLMANDELIC ACID, 24 HR URINE Vanillylmandelic Acid, 24 Hr Urine
VANILLYLMANDELIC ACID, 24 HR UR INTERVAL VANHR VANILLYLMANDELIC ACID, 24 HR UR INTERVAL Vanillylmandelic Acid, 24 Hr Urine Interval
VANILLYMANDELIC ACID, CHILD VANCH VANILLYMANDELIC ACID, CHILD Vanillylmandelic Acid, Child
VANILLYLMANDELIC ACID, 24 HR URN VOLUME VANHR VANILLYLMANDELIC ACID, 24 HR URN VOLUME Vanillylmandelic Acid, 24 Hr Urine Volume

Result Interpretation

0.0-7.5  mg/24 hours
 
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.

Forms
Chemistry LAB452 build edit