Days Set Up
Thursday
Analytic Time
3 days
Soft Order Code
MMLR
Test Updated:
Synonyms
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Test Overview
Test Methodology
Gas Chromatography (GC)
Test Usage
Therapeutic drug monitoring.
Reference Range
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Specimen Requirements
Collection Instructions
Collect specimen in a red top tube; do not use SST tube. Centrifuge, aliquot serum into a plastic vial and freeze. Protect specimen from light. EDTA (lavender top) or heparinized (green top) plasma is also acceptable.
Normal Volume
5 mL serum
Minimum Volume
3 mL serum
Billing Information
CPT Code
80338
Pro Fee Code
Insurance Auth Info
LOINC
9778-2