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Beaumont Laboratory


Ludiomil, ARUP #90662, EPIC: LAB6093, SOFT: XMAPR

Specimen Collection Criteria

Collect (preferred specimen): Two plain Red-top tube.
Also acceptable: Two Green-top Sodium Heparin or Lavendar-top EDTA tube.

Do not use Serum Separator Tubes.
Time of Collection: Trough, just prior to the next dose.

Physician Office/Drawsite Specimen Preparation

Centrifuge to separate serum or plasma from cells. Transfer serum or plasma to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 3.0 mL serum or plasma, refrigerated (2-8°C or 36-46°F). (Min: 1.2 mL)

Rejection Criteria

  • Serum Separator (SST) tubes.
  • Specimens not collected or processed as indicated.


Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 14 days
Refrigerated (2-8°C or 36-46°F): 25 days
Frozen (-20°C/-4°F or below): 1 year

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.


Sent to ARUP Laboratories, Salt Lake City, UT, forwarded to National Medical Services (NMS), Willow Grove, PA.


Results available in 4-7 days.

Reference Range

By report.

Test Methodology

Quantitative Gas Chromatography.


By report.

Clinical Utility

Maprotiline is a tetracyclic antidepressant used to treat depression, chronic schizophrenia, idiopathic pain and potentially for drug abuse withdrawal. This assay is used for the therapeutic monitoring and toxicity assessment of maprotiline.

CPT Code

80335 (alternate code: G0480).

Test Codes


Last Updated


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This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.