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Back to Test Catalogue
Test ID: HVA U

Homovanillic Acid (HVA), 24hr Urine

Orderable by Ontario ND

Test Overview

Method

Liquid chromatography-tandem mass spectrometry (LC-MS/MS)

Result Included

Volume; Creatinine/d; Creatinine/L; Homovanillic Acid; Homovanillic Acid/Creatinine Ratio

Specimen

Specimen Type

24h Urine

Containers

Collection Containers

24 Hour Urine Container

Volume

Sample Volume

10 mL

Minimum Volume

2 mL

Pediatric

Volume

2 mL

Minimum

0.2 mL

Collection & Handling

Collection Instructions

24-hour urine collected in a polyethylene container with 25 mL 6N Hydrochloric Acid. It is important that the urine is refrigerated during the collection. The pH of the urine must be < 4.0.

Handling Information

Store and send cold or frozen

Stability

Refrigerated Frozen
1 month 90 days

Rejection Criteria

Criteria Specification
Other Specimen not between pH 2 - 4

Performance & Interpretation

Turnaround Time

6 days

Results

Name
Units
Reference Range
Conversion
  1. Volume
    L
    0.600 - 1.600
  2. Creatinine/L
    mmol/L
  3. Creatinine/d
    mmol/d
    7.0 - 15.0
  4. HVA
    µmol/d
    0.0 - 45.0
  5. HVA/Creat Ratio
    µmol/mmol cr
    0.0 - 6.0

Referral Location

Canada

Interface & Setup

HL7 Interface Codes

Order Code Result Name Result Codes Units
HVA U Volume 7601 L
Creatinine/d 7602 mmol/d
Creatinine/L 7637 mmol/L
HVA 63034 umol/d
HVA/Creat Ratio 63035 umol/mmol creatinine

Test Version

Last Updated

2022-12-15