VANILLYLMANDELIC ACID (VMA), URINE
Specimen Collection Requirements
24-hour or random urine. Refrigerate during and after collection.
5 mL aliquot from a well-mixed 24-hour or random collection. Refrigeration is the preferred method of preservation. Record total volume and collection time interval on transport tube and requisition
=>18 years: 0.0-7.0 mg/d
The VMA-to-creatinine ratio will be reported when the patient is under 18 years, the urine collection is random or other than 24-hour, or the urine volume is less than 400 mL/24 hours.
Thursday, January 5, 2017 03:42:33 AM