Last Modified:
8/12/2021 5:28:07 AM
Medical Necessity Documentation:
Client Notes:
Patient Preparation:
Specimen Requirements:
1.0 mL Serum from a Red Top Tube in a Plastic Vial
Collection Instructions:
Centrifuge and separate serum within 1 hour of collection, transfer serum to a clean, plastic, screw-cap vial.
Minimum Volume:
0.4 mL Serum
Transport & Storage: Temperature/Stability:
30 days Ambient (Transport)
7 months Frozen
Avoid freeze/thaw cycles
Rejection Criteria:
Polymer gel separation tube (SST or PST).
Reference Range:
Steady-state peak plasma levels from patients on regimen of 10 or 30 mg/day: 21 and 64 ng/mL, respecitvely, and occur at approximately 4 hours post dose.
This test is not Chiral specific. Patients who have taken Racemic Citalopram (Celexa®), as opposed to Escitalopram (Lexapro®), within the past 3 days may have falsely elevated values.
Critical Ranges:
Test Comments:
Methodology:
High Performance Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Clinical Significance:
Therapeutic Drug Monitoring Antidepressant
Documentation:
Custom Panel:
No
PRODUCTION SCHEDULE
Turn Around Time:
4 to 5 days
Days Performed:
Tuesday, Thursday
Sites Performed:
Quest - Chantilly
PHL Test Code:
MSOT
EPIC Test Code:
Send Out Test Code:
15857
Alternate Test Names:
Celexa®; Escitalopram; Lexapro®
Included Tests:
CPT Coding:
80332
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