Trazodone
Test Summary
For therapeutic drug monitoring of antidepressant therapy. Peak plasma levels occur approximately 1 hour after dosing when Trazodone is taken on an empty stomach or 2 hours after dosing when taken with food. Elimination of Trazodone is biphasic, consisting of an initial phase (half-life 3-6 hours) followed by a slower phase (half-life 5-9 hours).
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.5 mL
Instructions
N/A
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 7 days
- Refrigerated: 14 days
- Frozen: 60 days
Limitations
N/A
Other Acceptable Specimens
Plasma collected in an EDTA (lavender-top) tube
Unacceptable Specimens
Gel barrier/serum separator tube
Order Code
TRAZO
EPIC (Premier) Code
LAB545
Includes
N/A
CPT Code
- 80299
Billing Code
- 700000
CPT Statement
Methodology
Chromatography/Mass Spectrometry
FDA Status
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.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute Valencia
27027 Tourney Road
Valencia CA, 91355
27027 Tourney Road
Valencia CA, 91355
Reference Range
800-1600 ng/mL
Setup Schedule / Expected Turnaround Time
Tuesday, Saturday; Report available: 3 - 6 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.5 mL
Instructions
N/A
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 7 days
- Refrigerated: 14 days
- Frozen: 60 days
Limitations
N/A
Other Acceptable Specimens
Plasma collected in an EDTA (lavender-top) tube
Unacceptable Specimens
Gel barrier/serum separator tube
Result Information
Methodology
Chromatography/Mass Spectrometry
Testing Laboratory
N/A
Reference Range
800-1600 ng/mL
Setup Schedule / Expected Turnaround Time
Tuesday, Saturday; Report available: 3 - 6 days