Laboratory Test Information Guide

Details for Metanephrines, Plasma

Test Name: Metanephrines, Plasma
Alternate Name(s): Plasma metanephrines
Fractionated metanephrines
Metanephrine
Normetanephrine
3-methyoxtyramine
Laboratory: Core
Specimen Type: Adult:
4 mL Lavender top (EDTA) Vacutainer tube

Pediatric:
2-10 years: 3 mL Lavender top (EDTA) Vacutainer tube
Collection Information: Collect a fasting sample. Patient must abstain from smoking tobacco for at least 4 hours prior to collection. Patient should be at rest in a supine position during collection to minimize false positive results.

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.

Minimum volume of plasma required is 0.6 mL.
Requisition: GENERAL LABORATORY REQUISITION
Test Schedule: Referred out Tuesday-Thursday
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
14 days
Stat
 
 
Reference Range: Metanephrine: < 0.50 nmol/L
Normetanephrine: < 0.90 nmol/L
3-methoxytyramine: < 0.30 nmol/L
Effective Date: 2014-05-13
Revised Date: 2019-05-13
Critical Value:  
Interpretive Comments:  
Special Processing:  
Comments:  
Method of Analysis: LC-MS/MS
Critical Information Required:  
Storage & Shipment: Store and ship plasma frozen.
System Codes: 
Cerner
METP
 
Referred To: In-Common Laboratories

Questions? Comments? Contact Laura Gopaul