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.

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 –
82570 – creatinine