Vanillylmandelic Acid (VMA), 24-Hr Urine

Additional Info: Test includes creatinine.

Methodology: High Performance Liquid Chromatography (HPLC)

Specimen Requirements: Submit an entire 24-hour urine collection in a urine container supplied by Meadville Medical Center Laboratory. Add 25 mL of 6N HCL as preservative at start of collection to maintain a pH of 3.0 or less. Urine without preservative is acceptable if pH is below 6.0 and shipped frozen. Refrigerate specimen during and after collection.

NOTE:
Patient should avoid alcohol, coffee, tea, tobacco (including use of nicotine patch), bananas, citrus fruits, and strenuous exercise 2 days prior to collection.
Patients should discontinue medication 3 days prior to specimen collection.
However, common antihypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference.
See “Urine Collection” located in “Specimen Collection & Preparation” section for timed collection instructions. Also refer to “Patient Information” section in back of manual for patient handout explaining collection information for this test.

Analytical Time: 2 days

Days Set Up: Monday through Friday

CPT Information:
84585 –
VMA
82570 – creatinine