Carisoprodol and Meprobamate, Urine, Quantitative
Ordering Recommendation

Preferred test to follow up presumptive results. For general screening, Carisoprodol Urine with Reflex to Quantitation (2012278) is preferred.

Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Sun, Tue, Thu
1-6 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Random urine. 
Specimen Preparation
Transfer 2 mL urine to an ARUP Standard Transport Tube. (Min: 0.7 mL) 
Storage/Transport Temperature
Unacceptable Conditions
Ambient: 3 weeks; Refrigerated: 3 weeks; Frozen: 3 weeks 
Reference Interval
Drugs CoveredCutoff Concentrations
Carisoprodol100 ng/mL
Meprobamate100 ng/mL

Interpretive Data
Methodology: Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Positive cutoff:
Carisoprodol 100 ng/mL
Meprobamate 100 ng/mL

For medical purposes only; not valid for forensic use.

The presence of metabolite(s) without parent drug is common and may indicate use of parent drug during the prior week.

The absence of expected drug(s) and/or drug metabolite(s) may indicate non-compliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, diluted/adulterated urine, or limitations of testing. The concentration value must be greater than or equal to the cutoff to be reported as positive. Interpretive questions should be directed to the laboratory.

Compliance Statement B: For laboratory developed tests not using a RUO kit, and for FDA approved, cleared or 510(k) exempt assays with alterations. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Hotline History
View Hotline History
CPT Code(s)
Component Test Code*Component Chart NameLOINC
2012220Carisoprodol, Urn, Quant10979-3
2012221Meprobamate, Urn, Quant3755-6
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
  • Carisoprodol
  • Carisoprodol and Metabolite
  • Equanil
  • Meprospan
  • Miltown
  • Rela
  • Sodol
  • Soma
  • Soma Compound
  • Soprodol
  • Soridol
  • Urine
  • Vanadom