Volume; Creatinine/L; Creatinine/d; Epinephrine; Epinephrine/Creatinine Ratio; Norepinephrine; Norepinephrine/Creatinine Ratio
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Catecholamines LC-MS/MS, 24 hr Urine
Test ID: CATF U
Test
Method
LC-MS/MS
Report Includes
Specimens
Urine (24 hr)
Test Location
St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8
Test Version
26-Jan-2023
Specimen
Specimens
Urine (24 hr)
Sample Volume
25 mL
Patient Preparation
Restrict caffeine, nicotine and alcohol 24 hours prior to collection. Discontinue Methyldopa (Aldomet) at least 5 days prior to collection. Other drugs usually do not interfere with this assay.
Collection & Handling
Collection Instructions
Collect urine in a container with 25 mL 6 mol/L (6N) HCl. The final pH must be maintained from 2 – 4.
Handling Information
Store and send cold or frozen.
Additional Information
State 24 hour volume and collection date.
Stability
| Refrigerated | 1 month |
|---|---|
| Frozen | Over 1 month |
Test Version
26-Jan-2023
Performance / Interpretation
Method
LC-MS/MS
Turnaround Time
7 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Volume | L |
|
||
| Creatinine/L | mmol/L |
|
||
| Creatinine/d | mmol/d |
|
||
| Epinephrine Total - Urine | nmol/d |
|
µg/d x 5.46 | |
| Epinephrine/Creatinine Ratio | nmol/mmol Creatinine |
|
µg/mg Creatinine x 617 | |
| Norepinephrine Total - Urine | nmol/d |
|
µg/d x 5.91 | |
| Norepinephrine/Creatinine Ratio | nmol/mmol Creatinine |
|
µg/mg Creatinine x 669 | |
Test Location
St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8
Test Version
26-Jan-2023
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| CATF U | 7601Volume | L |
| 7637Creatinine/L | mmol/L | |
| 7602Creatinine/d | mmol/d | |
| 63400Epinephrine | nmol/d | |
| 63401Epine/Creat Ratio | nmol/mmol creat | |
| 63402Norepinephrine | nmol/d | |
| 63403Norepi/Crt Ratio | nmol/mmol creat |
Test Version
26-Jan-2023