Test Directory

Clear All
Test Code
HVAUR
Test Name
Homovanillic Acid, Urine
CPT Codes
83150
Expected Turnaround Time
3 - 6 days
Clinical Utility

Diagnose neuroblastoma, ganglioneuroblastoma, and pheochromocytoma; follow course of tumor treatment
Specimen and Container Info

Specimen Type: 24 Hour Urine

  

Collection Container: 24 Hour Plastic Urine Container

    

Desired Specimen Volume: 4 mL
Collection Instructions
  1. Collect 24-hour urine in a timed collection jug.
  2. Refrigerate during 24-hour collection.
Processing and Submission Instructions
  1. Record total volume and collection time interval on transport tube and test request form.
  2. Transfer 4 mL of urine from a well-mixed 24-hour collection to a clear aliquot tube (screw cap).
Patient Preparation

Patient should avoid aspirin, disulfiram, reserpine, and pyridoxine, if possible, at least 48 hours prior to collection of the specimen. Levodopa should be avoided for two weeks before collection.
Transport Instructions

Transport to the laboratory refrigerated. 
Stability Requirements

Room Temperature

 14 days

Refrigerated

14 days

Frozen

14 days

Freeze/Thaw Cycles

 Stable x3
Methodology
Liquid Chromatography - Tandem Mass Spectrometry (LC-MS/MS)
Reference Intervals

 See patient report.
Alternate Names
  •  HVA, 24-Hour Urine
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Varies
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
© 2026 HNL Lab Medicine. All rights reserved.