Laboratory Test Information Guide

Details for Metanephrines, Plasma

Test Name: Metanephrines, Plasma
Alternate Name(s): Plasma Metanephrines
Laboratory: Core
Specimen Type: 4 mL Lavender top Vacutainer tube
Collection Information: Minimum volume of plasma required for testing is 3 mL.

Collect a fasting sample. Separate into two aliquots and freeze. Patient must abstain from smoking tobacco for at least 4 hours prior to collection.

Note: This test is available for samples coming from the Clinical Investigations Unit at St. Joseph’s Health Care London (J-CIU). Other physicians ordering this test will require approval by Dr. Angela Rutledge (ext. 77626) or the on-call biochemist prior to ordering the test.
Test Schedule: As required
Turnaround time from when specimen
is received in testing laboratory:
14 days
Reference Range: Normetanephrine Reference Range:
<= 0.89 nmol/L

Metanephrine Reference Range:
<=0.49 nmol/L
Effective Date: 2014-05-13
Revised Date: 2017-04-24
Critical Value:  
Interpretive Comments:  
Special Processing:  
Comments: Referred out Tuesday - Thursday
Method of Analysis: LC-MS/MS
Critical Information Required:  
Storage & Shipment: Store and send frozen. If the specimen thaws, it is unsuitable for analysis.
Can remain frozen up to 3 months if kept at -70o degrees Celsius.
System Codes: 
Referred To: Hospitals In-Common Laboratory Inc.

Questions? Comments? Contact Laura Gopaul