Serotonin, Blood

Test code

818

CPT code(s)*

84260

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide Service area information to confirm Test Code for the lab that services your account or to find available tests you can order.

In-home collection is not available in your area through Quest Mobile.

Clinical significance

Serotonin, Blood - Serotonin is produced in excess by carcinoid tumors of the enterochromaffin cell usually in the small intestine, appendix or rectum.

Test resources

None found for this test
Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.

Details

Test details

Methodology

Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Assay category

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Specimen requirements
Patient preparation	None Specified
Preferred specimen(s)	4 mL whole blood submitted in a Serotonin Kit (provided by Quest Diagnostics) (see instructions)
Alternative specimen(s)	See preferred specimen requirements for instructions
Minimum volume	1 mL
Collection instructions	Proper specimen collection, storage and shipment are critical for serotonin whole blood analysis. Strict adherence to the following specimen collection instructions will ensure the most meaningful results. 1. Draw blood into the EDTA 7.2-mg Vacutainer® tube. 2. After drawing the blood, mix well and immediately transfer all blood to the enclosed container, which contains 35 mg of ascorbic acid. 3. Mix well and freeze immediately. 4. Ship frozen. Expiration date for ascorbic acid container is the same as the EDTA tube provided in the kit.
Transport container	Serotonin Kit (provided by Quest Diagnostics)
Transport temperature	Frozen
Specimen stability	Room temperature: Unacceptable Refrigerated: Unacceptable Frozen: 30 days
Reject criteria	Received room temperature • Received refrigerated • EDTA (lavender-top) collection without ascorbic acid

Reference range(s)

56-244 ng/mL

LOINC® codes

Select a service areato view this section

Service Area Information

Performing lab & setup schedule

Select a service areato view this section

Service Area Information

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

*The CPT codes provided are based on AMA guidance 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.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.