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314: Catecholamines, Fractionated, Plasma Print View
Epinephrine     pg/mL 
Norepinephrine     pg/mL 
Dopamine     pg/mL 
Total Catecholamines     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)  
  Plasma Lithium Heparin 4 (2.5) mL   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
After drawing specimen, place green top tube in ice bath.
Centrifuge 20 minutes 1000XG. The plasma **must** be free
of RBC's.
Freeze on dry ice to transport.
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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