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Test Code HTT Serotonin Transporter Genotype, Blood

Reporting Name

Serotonin Transporter Genotype

Useful For

Evaluating patients who have failed therapy with selective serotonin reuptake inhibitors (SSRIs)

 

Evaluating patients with treatment-resistant depression

 

Predicting response time to improvement with SSRIs

 

Identifying patients who might respond favorably to a class of antidepressants other than SSRI.

 

Identifying patients who have diminished amounts of the serotonin transporter and, hence, an altered response to SSRI therapeutics

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Whole Blood EDTA


Specimen Required


Multiple whole blood EDTA genotype tests can be performed on a single specimen after a single extraction. See Multiple Whole Blood EDTA Genotype Tests in Special Instructions for a list of tests that can be ordered together.

 

Container/Tube: Lavender top (EDTA)

Specimen Volume: 3 mL


Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole Blood EDTA Ambient (preferred)
  Refrigerated 

Reference Values

An interpretive report will be provided.

Day(s) and Time(s) Performed

Monday, Thursday; 8 a.m.

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

81479 -Unlisted molecular pathology procedure

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HTT Serotonin Transporter Genotype 50330-0

 

Result ID Test Result Name Result LOINC Value
83302 Serotonin Transporter Genotype 50330-0
30133 Reviewed by No LOINC Needed

Method Name

Polymerase Chain Reaction (PCR) Followed by Sizing Analysis

Forms

New York Clients-Informed consent is required. Please document on the request form or electronic order that a copy is on file. An Informed Consent for Genetic Testing (T576) is available in Special Instructions.