Benzodiazepine Screen
Benzodiazepine Screen can be requested without a referral, and this overview covers what to expect. A benzodiazepine screen is a blood test that checks for the presence of benzodiazepine drugs, a class of medications often prescribed for anxiety, insomnia, and seizures. It is ordered when a healthcare provider needs to detect recent use, assess possible overdose, or monitor adherence to a prescribed regimen.
- Sample type
- blood
- Category
- Drug & Urine Screening
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
A benzodiazepine screen is a blood test that checks for the presence of benzodiazepine drugs, a class of medications often prescribed for anxiety, insomnia, and seizures. It is ordered when a healthcare provider needs to detect recent use, assess possible overdose, or monitor adherence to a prescribed regimen.
What it measures
- Benzodiazepine class — Detects many common benzodiazepines, such as diazepam, lorazepam, and alprazolam, but not every specific drug.
- Specific benzodiazepines — Some tests can identify individual drugs like diazepam or midazolam, which may help confirm which substance was taken.
- Metabolites — Breakdown products of benzodiazepines that can remain in the blood longer than the original drug.
Who it is for
Healthcare providers in emergency rooms, primary care, or addiction medicine typically order this test. It may also be used in workplace or legal settings, though urine tests are more common for those purposes.
Preparation
No fasting or special preparation is usually required. Tell your provider about all medications, supplements, and recreational drugs you use, as these can affect the results.
Results and what they mean
Results are reported as positive or negative, and sometimes with a level or specific drug identified. A positive result means benzodiazepines were detected, but it does not necessarily indicate misuse or impairment. Only a qualified clinician can interpret the results in the context of your health history. This information is not medical advice.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the benzodiazepine screen is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
How long after taking a benzodiazepine can this test detect it?
Detection times vary by drug, dose, and individual factors. Some benzodiazepines can be detected for several days, while others may clear within hours.
Can foods or other medications cause a false positive?
Yes, certain medications and rarely some foods can interfere with the test. Your provider will consider this when interpreting results.
Is this test confidential?
Yes, your test results are protected health information and are kept private under privacy laws.
What should I do if I have a positive result?
Discuss the result with your healthcare provider. They can explain what it means for your situation and whether further testing is needed.