Benzodiazepines, Serum

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The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.

Also known as: Benzodiazepines Serum

Alpha Hydroxyalprazolam

Alpha Hydroxytriazolam













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The Benzodiazepines, Serum test contains 1 test with 14 biomarkers.

Benzodiazepines, Serum

Alprazolam, Alpha-Hydroxyalprazolam, Alpha-Hydroxytriazolam, Chlordiazepoxide, Clonazepam, Desalkylflurazepam, Diazepam, Lorazepam, Midazolam, Norchlordiazepoxide, Nordiazepam, Oxazepam, Temazepam, Triazolam

Clinical Significance
Benzodiazepines, Serum - Benzodiazepines are widely used as anxiolytics, sedative-hypnotics, muscle relaxants, and anticonvulsants. Benzodiazepines include drugs such as diazepam Valium®, chlordiazepoxide Librium®, oxazepam Serax®, lorazepam Ativan®, alprazolam Xanax®, clonazepam Clonopin® and triazolam Halcion®. Many common benzodiazepines are detected in urine by their metabolites oxazepam and nordiazepam. Psychological and physiological addictions, misuse, and abuse of benzodiazepines have been described.

Reference Range(s)

  • Temazepam    50-1000 ng/mL
  • Oxazepam     
    •   Therapeutic    200-500 ng/mL
    •   Potentially toxic    >2000 ng/mL
  • Chlordiazepoxide    100-3000 ng/mL
  • Norchlordiazepoxide    100-3000 ng/mL
  • Nordiazepam    100-1500 ng/mL
  • Alprazolam    10-50 ng/mL
  • Alpha-Hydroxyalprazolam    5-25 ng/mL
  • Alpha-Hydroxytriazolam    5-20 ng/mL
  • Clonazepam    30-60 mcg/L
  • Desalkylflurazepam    30-150 ng/mL
  • Diazepam    100-1500 ng/mL
  • Lorazepam    50-240 ng/mL
  • Midazolam    50-600 ng/mL
  • Triazolam    5-20 ng/mL

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