Fractionated metanephrines
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Metanephrines and 3-Methoxytyramine LC-MS/MS, Plasma
Test ID: FRMET P
Test
Aliases/Synonyms
Method
LC-MS/MS
Report Includes
Metanephrine; Normetanephrine; 3-Methoxytyramine
Specimens
Plasma (EDTA)
Test Location
St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8
Test Version
19-Jun-2024
Specimen
Specimens
Plasma (EDTA)
Sample Volume
1 mL
Patient Preparation
The following patient preparation is recommended but not mandatory.
- Overnight fasting
- Abstaining from smoking tobacco for at least 4 hours prior to collection
- Resting in the supine position for 15 minutes before and during collection
- If epi pen is given, wait for 24 hours before collection.
Collection & Handling
Handling Information
Separate within 2 hours of collection. Store and send frozen.
Stability
| Refrigerated | 14 days |
|---|---|
| Frozen | Up to 1 year |
Rejection Criteria
| Specimen | Serum |
|---|---|
| Hemolysis | Gross |
Test Version
19-Jun-2024
Performance / Interpretation
Method
LC-MS/MS
Turnaround Time
11 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Metanephrine | nmol/L |
|
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| Normetanephrine | nmol/L |
|
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| 3-Methoxytyramine | nmol/L |
|
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Test Location
St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8
Test Version
19-Jun-2024
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| FRMET P | 62896Metanephrine, plasma | nmol/L |
| 62897Normetanephrine, plasma | nmol/L | |
| 628983-Methoxytyramine, plasma | nmol/L |
Test Version
19-Jun-2024