Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  


Geisinger Epic Procedure Code: LAB1954         Geisinger Epic ID: 14851

Specimen type:
Preferred collection container:
Alternate Collection Container:
3 mL green/black top lithium heparin tube
Specimen required:
4 mL aliquot of plasma; minimum 2.5 mL. Please submit a separate frozen aliquot for this test. It may not be combined with any other test requiring a frozen aliquot.
Special notes:
Collect two green-top tubes. Draw in chilled tubes. Centrifuge immediately. Lavender-top EDTA tube not acceptable.
Patient preparation:
Patient should fast for 12 hours and should avoid alcohol, tobacco, coffee, tea, and strenuous exercise before collection. Patients should be relaxed in either a supine or upright position before blood is drawn. States of anxiety and stress can cause fluctuations in catecholamine levels.

Specimen processing instructions:
Separate plasma in a refrigerated centrifuge within 30 minutes of collection. Transfer plasma to clean, plastic, screw-capped vial(s), freeze immediately, and ship frozen. Do not thaw. 
Transport temperature:
Specimen stability:
Room Temperature: 6 hours. Refrigerated: 6 hours. Frozen: 1 month.
Rejection criteria:
Stability limits exceeded. Lavender-top EDTA tube not acceptable.

CPT code(s):
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Dopamine, Epinephrine, Norepinephrine and Total Catecholamines (calculated).
High Performance Liquid Chromatography (HPLC)
Electrochemical detection
Quest test code 14566, CATFRA
Clinical significance:
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 (pheochromocytomas, neuroblastomas, and gangliomas) and with the evaluation of orthostatic hypotension.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Set up: Monday-Friday. Report available: 4-7 days    
Performed stat? No
Locations  |    Search  |    Site Map |   Contact Us
©2000-2021 Geisinger Health System.   All rights reserved.