| Test CODE | NAME |
|---|
L040
Vanillylmandelic Acid (VMA), 24-Hour Urine
| Methodology: | Liquid chromatography/tandem mass spectrometry (LC/MS-MS) |
| Performed: | Varies |
| Reported: | 3-5 days |
| Specimen Required: | Collect: 24 Hr. Urine : 4 ml urine in a plastic urine container .
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).
Specimen Preparation: 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). Measure and record total urine volume. Mix well; send aliquot. Label container with patient's name, date and time collection started, and date and time collection completed.
Storage/Transport Temperature: Room Temperature : 1 week
Stability: Room Temperature/Refrigerator: 1 week
NOTE: * This test is approved for all states. *
Performing Laboratory
LabCorp Laboratory Corporation of America
|
| CPT Code(s): | 84585 |