abcdefghijklmn
opqrstuvwxyz
Test Menu
Test Change Details
Allergy & Immunology
Cardiology & Coagulation
Dermatopathology
Endocrinology
Gastroenterology
Genetics
Hepatology
Infectious Disease
Microbiology
Nephrology
Neurology
Oncology
Pathology
Pediatrics
Rheumatology
Toxicology
Urology
Women's Health
934: Vma, 24-hour Urine (without Creatinine) Print View
Total Volume     mL 
Vanillylmandelic Acid, 24h U     mg/24 h 

PRIMARY
1 Urine with HCL 24 hour 10 (5) mL   Frozen - 12 Month(s)/Refrigerated - 14 Day(s)/Room Temperature - 10 Day(s)  
ALTERNATE
  Urine 24 hour   Room Temperature - 10 Day(s)/Refrigerated - 14 Day(s)/Frozen - 12 Month(s)  

Vanillylmandelic acid (VMA) is the major urinary product resulting from the metabolic degradation of catecholamine, norepinephrine and epinephrine. Elevated concentrations of VMA are commonly found in cases of catecholamine secreting tumors such as pheochromocytoma, neuroblastoma, and ganglioneuroma. Drugs which can interfere with testing due to physiologic response: clonidine, L-dopa, methocarbamol, monoamine oxidase inhibitors, reserpine, salicylates.

10 mL urine: pH adjusted to <3.0 using 6N HCl.
Urine without preservative is acceptable if pH is below 6 and the
sample is shipped frozen.

Patient Preparation
It is preferable for the patient to be off medications for three days
prior to collection. However, common antihypertensives (diuretics,
ACE inhibitors, calcium channel blockers, alpha and beta blockers)
cause minimal or no interference. Patient should avoid alcohol,
coffee, tea, tobacco (including use of nicotine patch), bananas,
citrus fruits and strenuos exercise prior to collection.
Setup Schedule
Monday-Friday

Reported (Analytical Time)
3 days

CPT Code
84585

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Reject Criteria: pH >3.0 and received unfrozen Transport Temperature: Preserved urine: Room temperature Unpreserved urine: Frozen Methodology: High Performance Liquid Chromatography, Electrochemical Detection






1996 - 2017 Quest Diagnostics Nichols Institute of Valencia
For test information, please call Client Services at 800-421-4449.

San Francisco Web Design & Database