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VANILLYLMANDELIC ACID & HOMOVANILLIC ACID, URINE

Mnemonic

VH

Synonym

VMA - HVA - Homovanillic Acid

Includes

VMA and HVA

Specimen Collection Requirements

Patient Preparation

Abstain from medications for 72 hours prior to collection.

Collect

Urine, random or 24-hour collection container

Handling

Refrigeration is the preferred method of preservation. Aliquot 5.0 mL of a well-mixed collection. Record the total volume and collection time interval on the transport tube and test request form.

Preferred Volume

5.0 mL

Minimum Volume

1.5 mL

Transport

Frozen

Stability

Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 2 weeks

Testing Information

Performed

Sun, Tue - Sat

Reported

3-5 days

Method

LC-MS/MS

Referral Lab

ARUP (80470)

Reference Values

Reference Values

Interpretation provided.
Age related reference ranges.

CPT Codes

83150, 84585

Last Updated: Friday, September 29, 2017 08:10:42 AM


Client Services: 503-413-1234