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Test Name

Amitriptyline

To view specimen requirements and codes please Select a regional laboratory.

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CPT Code(s)**

80335 (HCPCS: G0480)
**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.

Includes

Amitriptyline, Nortriptyline and Total

Methodology

Chromatography/Mass Spectrometry

Reference Range(s)

Total 100-250 mcg/L

Clinical Significance

The tricyclics are used to treat depression. Nortriptyline is an active metabolite of Amitriptyline. Therapeutic drug levels are monitored to assist the physician assessing therapeutic response and to avoid toxicity.

Alternative Name(s)

Triavil,Amitriptyline & Metabolite,Limbitrol®,Endep,Elavil®,Etrafon,Amitril

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 guidelines 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.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

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447Q
638T
638T
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638T
638T
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638T
638T
29116
423X
638N
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Amitriptyline
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