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Test ID:
HVAUR
Homovanillic Acid (HVA), Random Urine
Orderable by Ontario ND
Test Overview
Method
Liquid chromatography-tandem mass spectrometry (LC-MS/MS)
Result Included
Creatinine; Homovanillic Acid; Homovanillic Acid/Creatinine Ratio
Specimen
Specimen Type
UrineContainers
Collection Containers
Mid-stream urine container
Volume
Sample Volume
5 mL
Minimum Volume
2 mL
Pediatric
Volume
2 mL
Minimum
0.2 mL
Collection & Handling
Handling Information
Aliquot 2 mL urine and adjust pH to 2 – 4 with 6N Hydrochloric acid. 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
-
Creatininemmol/L
-
HVA Randomµmol/L
-
HVA/Creat Ratio Randomµmol/mmol cr≤ 1 y: ≤ 20.0
2 y - 4 y: ≤ 14.0
5 y - 9 y: ≤ 9.0
10 y - 19 y: ≤8.0
≥ 20 y: ≤6.0
Referral Location
Canada
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| HVAUR | Creatinine Rand Urine | 28004 | mmol/L |
| HVA Random | 63036 | umol/L | |
| HVA/Creat Ratio Random | 63037 | umol/mmol creatinine |
Test Version
Last Updated
2022-12-15