Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

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

SEROTONIN, BLOOD

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB3048         Geisinger Epic ID: 6986

SPECIMEN COLLECTION
Specimen type:
Whole blood
Preferred collection container:
Specimen required:
4 mL EDTA whole blood in ascorbic acid container; minimum 1 mL.
Special notes:
Minimum draw one 4 mL EDTA tube provided with kit. Transfer immediately to the plastic bottle containing 35 mg ascorbic acid (also provided with kit). Mix and freeze. Send frozen.
Patient preparation:
Patient should avoid foods high in indoles: avocado, banana, tomato, plum, walnut, pineapple, and eggplant. Patient should also avoid tobacco, tea, and coffee for three (3) days before collection.

SPECIMEN PROCESSING
Specimen processing instructions:
Do not centrifuge. Do not aliquot. 
Transport temperature:
Frozen.
Specimen stability:
Room Temperature: Unacceptable. Refrigerated: Unacceptable. Frozen: 6 Weeks
Rejection criteria:
Specimen not shipped frozen.

TEST DETAILS
CPT code(s):
84260
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:
Serotonin.
Methodology:
High Performance Liquid Chromatography (HPLC)
Synonyms:
Quest test code 9651, SEROT
Clinical significance:
Serotonin is produced in excess by carcinoid tumors of the enterochromaffin cell usually in the small intestine, appendix or rectum.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Set up: Monday-Friday. Report available: 2 days.    
Performed stat? No
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