VMA RN U

Vanillylmandelic Acid, Random Urine

EPIC Test Procedure Code: LAB3446

Synonyms:
VMA Random Urine
VMAR
Performing Lab:
Referral Laboratory
Patient Preparation:

Administration of L-dopa may falsely increase vanillylmandelic acid results. For 24 hours prior to specimen collection, the patient should not take L-dopa.

Required Patient Info:

1. Patient's age is required. 

2. All patients receiving L-dopa should be identified to the laboratory when this test is ordered. 

3. Bactrim may interfere with detection of the analyte. All patients taking Bactrim should be identified to the laboratory when this test is ordered.

Container Type:
Plastic urine container
Specimen Type:

Urine

Preferred Volume:
5 mL
Minimum Volume:
2 mL
Specimen Processing:

1. Collect a random urine specimen. 

2. Adjust the random urine pH to a level between 1 and 5 by adding 50% acetic acid or hydrochloric acid dropwise and checking the pH.

Store and Transport:
Refrigerated
Stability:

Frozen - 180 days
Refrigerated - 28 days
 

Unacceptable Condition:

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

CPT Codes:

84585 - VMA Random Urine (EAP 30040420)

Test Schedule:
Monday through Friday
Turnaround Time:
3-5 days
Method:
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Lab Personnel

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