Volume; Creatinine/d; Creatinine/L; Homovanillic Acid; Homovanillic Acid/Creatinine Ratio
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Homovanillic Acid (HVA), 24hr Urine
Test ID: HVA U
Orderable by Ontario ND
Test
Method
LC-MS/MS
Report Includes
Specimens
24h Urine
Test Location
St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8
Test Version
15-Dec-2022
Specimen
Specimens
24h Urine
Collection Containers
24 Hour Urine Container
Sample Volume
10 mL
Minimum Volume
2 mL
Pediatric Volume
2 mL
Pediatric 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 | 1 month |
|---|---|
| Frozen | 90 days |
Rejection Criteria
| Other | Specimen not between pH 2 - 4 |
|---|
Test Version
15-Dec-2022
Performance / Interpretation
Method
LC-MS/MS
Turnaround Time
6 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Volume | L |
|
||
| Creatinine/L | mmol/L |
|
||
| Creatinine/d | mmol/d |
|
||
| HVA | µmol/d |
|
||
| HVA/Creat Ratio | µmol/mmol cr |
|
||
Test Location
St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8
Test Version
15-Dec-2022
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| HVA U | 7601Volume | L |
| 7602Creatinine/d | mmol/d | |
| 7637Creatinine/L | mmol/L | |
| 63034HVA | umol/d | |
| 63035HVA/Creat Ratio | umol/mmol cr |
Test Version
15-Dec-2022