Meprobamate, Quantitative, Serum or Plasma [635Z]

Test Code

CPT Codes
80369 (HCPCS: G0480)

Preferred Specimen
2 mL timed serum collected in a red-top tube (no gel)

Minimum Volume
Serum 1.5 mL
Plasma 1 mL

Other Acceptable Specimens
Timed serum collected in: no additive (dark blue-top) tube • Timed plasma collected in a: flouride oxalate (gray-top), or EDTA (lavender-top), or sodium heparin (green-top) tube

Transport Container
Plastic screw-cap vial

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: 72 hours
Refrigerated: 14 days
Frozen: 90 days

Gas Chromatography/Mass Spectrometry (GC/MS)

Setup Schedule
Set up: Mon-Sat p.m.; Report available: Next day

Reference Range
5.0-30.0 µg/mL

Clinical Significance
Meprobamate is used in the treatment of neuroses and as a muscle relaxant. It is also used as a tranquilizer in emotional disturbances. Measurement of serum levels is used to monitor therapy, compliance and/or degree of toxicity.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.