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Beaumont Laboratory


Demerol, Dolantin, NMS #2610SP, Order as a Miscellaneous Sendout

Specimen Collection Criteria

Collect (preferred specimen): One plain Red-top tube.
Also acceptable: One Lavender-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 within two hours of collection. 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 and processed as indicated.


Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 7 days
Refrigerated (2-8°C or 36-46°F): 14 days
Frozen (-20°C/-4°F or below): 14 days

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 NMS Willow Grove, PA.


Tuesday, Thursday.
Results available in 4-11 days.

Reference Range

By report.

Test Methodology

Gas Chromatography (GC).


By report.

Clinical Utility

Meperidine is indicated for the relief of moderate to severe pain. This assay is used for therapeutic and toxicity monitoring of meperidine.

CPT Code

80362 (alternate code: G0480).

Test Codes

NMS #2610SP, Order as a Miscellaneous Sendout

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.