Metanephrines, Fractionated, Free, Plasma

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Preliminary screening test for diagnosing tumors that secrete catecholamines, such as pheochromocytomas or paragangliomas.

Metanephrines, Fractionated, Free, Plasma

OVERVIEW

The Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS) method, reported as Metanephrines, Fract., Free, P, examines plasma samples for fractionated and free metanephrines, such as normetanephrine and metanephrine. Patient preparation is necessary to ensure accurate results; individuals should abstain from using an Epi-pen within the past 7 days. Plasma should be collected using lavender top EDTA tubes, promptly centrifuged, and aliquoted into plastic vials within 2 hours to preserve sample quality.


 

METHOD NAME

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

 

AVAILABILITY

TBC

 

REPORTING NAME

Metanephrines, Fract., Free, P
 

ALIASES

Fractionated metanephrines +

Free Metanephrine

Metanephrines free, plasma

NMN (Normetanephrines), plasma

Normetanephrine, (NMN), free

Normetanephrines, plasma

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SPECIMEN TYPE

Plasma EDTA

 

SHIPPING INSTRUCTIONS

TBC

 

SPECIMEN REQUIRED

Patient Preparation: Use of an Epi-pen within the last 7 days may produce inaccurate results.

Collection Container/Tube: Lavender top (EDTA)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Centrifuge and aliquot plasma into a plastic vial within 2 hours of collection.

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