VMA (Vanillylmandelic Acid), 24-Hour Urine with Creatinine
Also known as: Vanillymandelic Acid w/Creatinine, VMA, 24 Hr Urine w/Creatinine
Use
This test is used to measure the level of Vanillylmandelic Acid (VMA) in a 24-hour urine sample. VMA is a metabolite of catecholamines, and elevated levels may indicate pheochromocytoma, neuroblastoma, and other neuroendocrine tumors.
Special Instructions
Not provided.
Limitations
Results can be affected by certain medications, foods, and stress. Ensure patient adherence to pre-test preparation guidelines for accurate results.
Methodology
Mass Spectrometry
Biomarkers
Creatinine
AnalyteVanillylmandelic Acid
Analyte
Result Turnaround Time
3-5 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
24-hour collection
Minimum Volume
Not provided
Container
24-hour urine container with acid
Collection Instructions
Collect all urine over a 24-hour period.
Patient Preparation
Avoid certain foods and medications prior to collection.
Storage Instructions
Refrigerate during collection.
Causes for Rejection
Incomplete collection, incorrect preservative.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unstable |
| Refrigerated | Stable for 48 hours |
| Frozen | Stable for longer periods |
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