Test directory: VMA, Random Urine

Ordering Code5482
Test NameVMA, Random Urine
AliasVanillylmandelic Acid, Random Urine
Preferred SpecimenUrine, Random
Preferred ContainerSterile Container
Other Specimen/ContainerRandom Urine in Clean Container
Urine without preservative is acceptable if pH<6 and sample is shipped frozen.
Optimum Volume20 mL
Collection InstructionsPatient should avoid alcohol, caffeine (coffee, tea, energy drinks, etc.), nicotine (tobacco, including the use of nicotine patch), bananas, citrus fruits, and strenuous exercise 3 days prior to collection. It is preferable for the patient to be off medications for 3 days prior to collection. However, common antihypertensives (diuretics,
ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference.
Handling InstructionsUpon receipt at Central, acidify urine to pH<3 with 6N HCl or freeze immediately.
Transport RequirementsOahu: Refrigerated
Airline: Refrigerated
Specimen StabilityAmbient: 10 Days
Refrigerated: 2 Weeks
Frozen: 1 Year
Rejection CriteriapH>3 and not frozen
Restrictions not followed, unless okayed by ordering physician.
Avail. StatNO
Analytic TimeUp to 7 Days
MethodologyHigh Performance Liquid Chromatography, Electrochemical
Detection (HPLC)
Reference Lab Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of April 16, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
VMAALLSee report.
Creatinine, Random UrineALLSee report.