VMA; Vanillylmandelic Acid, VMA 24 Hour Urine
24- hour urine with 25 mL of 6N HCl to maintain pH below 3 during collection. It is preferable for the patient to be off medications for 3 days before specimen collection. However, common antihypertensives cause minimal or no interference. Patient shou
Specimen Minimum Volume
5 mL of a 24 hour urine
Specimen Stability Information
specimen is stable for 10 days at room temperature.
as ordered. Turn around time is approximately 3-5 days.