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314: Catecholamines, Fractionated, Plasma Print View
Epinephrine     pg/mL 
Norepinephrine     pg/mL 
Dopamine     pg/mL 
Catecholamines, Total     pg/mL 

PRIMARY
1 Plasma Heparinized 4 (2.5) mL   Room Temperature - 6 Hour(s)/Refrigerated - 6 Hour(s)/Frozen - 30 Day(s)  
ALTERNATE
  Plasma Sodium Heparin Tan 4 (2.5) mL   Room Temperature - 6 Hour(s)/Refrigerated - 6 Hour(s)/Frozen - 30 Day(s)  
  Lithium Heparin   Frozen - 30 Day(s)/Room Temperature - 6 Hour(s)/Refrigerated - 6 Hour(s)  

The three catecholamines (norepinephrine, epinephrine, and dopamine) are the principal secretory products of neural tissue. Clinically, the measurement of circulating catecholamines is valuable in the diagnosis of catecholamine secreting tumors associated chiefly with hypertension (phechromocytomas, neuroblastomas, and gangliomas) and with the evaluation of orthostatic hypotension.

Patient Preparation
Patients should be relaxed in either a supine or upright position
before blood is drawn. Stages of anxiety and stress can cause
fluctuations in the catecholamine levels. Draw specimen in a
pre-chilled green-top vacutainer. Patient should avoid alcohol,
coffee, tea, tobacco and strenuous exercise prior to collection.
Overnight fasting is required.
Instructions
Plasma should be separated in a refrigerated centrifuge within 30
minutes of collection and then frozen immediately at -20 C in plastic
vials. Each specimen will be invoiced separately.
Setup Schedule
Monday-Friday

Reported (Analytical Time)
3 days

CPT Code
82384

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Transport Temperature: Frozen Methodology: High Performance Liquid Chromatography with Electrochemical Detection






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