Catecholamines, Plasma CAT

Synonyms

Allscripts (AEHR) Order Name

Catecholamine Fractionation

Sunrise Clinical Manager (SCM) Order Name

Catecholamine Fractionation

EPIC Order Name

Catecholamines, Fractionated, Plasma

Clinical Info

Plasma catecholamines with urinary metanephrines and VMA are a recommended test battery for pheochromocytoma.3 Others recommend plasma catecholamines when urinary collections are not diagnostic. Work up multiple endocrine adenomatosis, type II. Used also in diagnosis of disorders related to the nervous system and in assessment of resuscitation

Specimen Type

Blood

Container

Lavender Top Tube

Collection Instructions

Specimen Type: Plasma Container/Tube: Lavender top (EDTA) or Dark Green Sodium Heparin Tubes-send at least two tubes
Specimen Volume: 1.5 mL
Specimen Minimum Volume: 0.7 mL
Transport Temperature: Frozen  After centrifugation, the plasma can be stored up to two hours at room temperature.
Collection Instructions
Draw blood in chilled lavender-top (EDTA) tube. Invert to mix with preservatives. Centrifuge and transfer the plasma to a labeled plastic transport tube. 
Place on-ice immediately (do not refrigerate) and freeze separated plasma within four hours of collection. Important: 
The patient should be in a fully recumbent position (lying down) for at least 20 minutes before and during sample collection.

Transport Instructions

Frozen  After centrifugation, the plasma can be stored up to two hours at room temperature.

Specimen Stability

Frozen Temp: 14 Days

Methodology

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

Days Performed

Monday through Friday
 
TAT: 5 - 7 Days

Performing Laboratory

LabCorp of America

CPT

82384

PDM

5900410

Result Interpretation

Reference Range
Analyte              Adults,  ≥18 years (Supine)

Dopamine:             0.0–36.7 pg/mL
Epinephrine:           0.0–55.4 pg/mL
Norepinephrine:    115–524 pg/mL

Forms


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