Dopamine; Epinephrine; Norepinephrine
Back to Test Catalogue
Catecholamines LC-MS/MS, Plasma
Test ID: CAT P
Test
Method
LC-MS/MS
Report Includes
Specimens
Plasma (EDTA)
Test Location
University Health Network, 200 Elizabeth St, 11E-444, Toronto ON M5G 2C4
Test Version
19-Mar-2024
Specimen
Specimens
Plasma (EDTA)
Sample Volume
5.0 mL
split into two equal aliquots
Minimum Volume
2.0 mL
split into two equal aliquots
Patient Preparation
Patient must refrain from eating, using tobacco and drinking caffeinated beverages for at least 4 hours before the specimen is drawn. Patient must be in supine position for at least 30 minutes prior to specimen collection.
Collection & Handling
Collection Instructions
Patient must be in supine position for at least 30 minutes prior to specimen collection. Place tube on ice immediately after collection.
Handling Information
Specimen should be kept cold and spun in a cold centrifuge as soon as possible, within 60 minutes. Split plasma into two equal aliquots and freeze immediately. Store and send frozen.
Stability
| Frozen | 1 week |
|---|
Additional Stability Information
If the specimen thaws, it is unsuitable for analysis. Stable for 6 months at -70°C
Rejection Criteria
| Specimen | Not frozen |
|---|
Test Version
19-Mar-2024
Performance / Interpretation
Method
LC-MS/MS
Turnaround Time
15 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Norepinephrine | nmol/L |
|
pg/mL x 0.00591 | |
| Epinephrine | nmol/L |
|
pg/mL x 0.00546 | |
| Dopamine | nmol/L |
|
||
|
Note: Higher catecholamine concentrations are observed in specimens collected from upright or standing adults.
|
||||
Test Location
University Health Network, 200 Elizabeth St, 11E-444, Toronto ON M5G 2C4
Test Version
19-Mar-2024
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| CAT P | 7065Norephinephrine (plasma) | nmol/L |
| 7067Epinephrine (plasma) | nmol/L | |
| 63939Dopamine (plasma) | nmol/L | |
| 40002Test Comment |
Test Version
19-Mar-2024