Epinephrine; Epinephrine/Creatinine Ratio; Norepinephrine; Norepinephrine/Creatinine Ratio
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Catecholamines LC-MS/MS, Random Urine
Test ID: CATFRU
Test
Method
LC-MS/MS
Report Includes
Specimens
Urine (Random)
Test Location
St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8
Test Version
26-Jan-2023
Specimen
Specimens
Urine (Random)
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
Acidify aliquot 6 mol/L (6N) HCl. The final pH must be maintained from 2 – 4.
Handling Information
Store and send cold or frozen.
Additional Information
Indicate random collection.
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 | |
|---|---|---|---|---|
| Creatinine | mmol/L |
|
||
| Epinephrine | nmol/L |
|
||
| Epinephrine/Creatinine Ratio | nmol/mmol Creatinine |
|
µg/mg Creatinine x 617 | |
| Norepinephrine | nmol/L |
|
||
| 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 |
|---|---|---|
| CATFRU | 28004Creatinine Rand Urine | mmol/L |
| 63396Epinephrine Random | nmol/L | |
| 63397Epine/Creat Ratio Random | nmol/mmol creat | |
| 63398Norepinephrine Random | nmol/L | |
| 63399Norepi/Crt Ratio Random | nmol/mmol creat |
Test Version
26-Jan-2023