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.
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.
After drawing specimen, place green top tube in ice bath.
Centrifuge 20 minutes 1000XG. The plasma **must** be free
Freeze on dry ice to transport.
Reported (Analytical Time)
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.
Transport Temperature: Frozen
Methodology: High Performance Liquid Chromatography with Electrochemical Detection