Drug Test — Basic (6 Panel)
A comprehensive urine test that screens for six commonly used substances including marijuana, cocaine, opiates, amphetamines, benzodiazepines, and oxycodone.
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LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
What this test measures
This 6-panel urine test screens for six categories of commonly encountered substances by detecting their metabolites, the chemical byproducts that remain in urine after the body processes a drug. The panel covers marijuana (THC metabolite), cocaine metabolites, opiates (including morphine and codeine), amphetamines, benzodiazepines, and oxycodone.
Each substance has a defined cutoff concentration that separates a positive result from a negative one. These cutoffs are calibrated to detect meaningful exposure while minimizing the chance of a false positive from incidental or environmental contact. Detection windows vary by substance and are influenced by factors including the amount consumed, frequency of use, individual metabolism, and body composition. The panel is commonly used for employment screening, personal health monitoring, compliance verification, and other situations where a confidential, accessible screening for recent substance use is needed.
What's included
Who should consider this test
You might consider this test if you are experiencing any of the following:
- Individuals preparing for employment opportunities or workplace drug screening requirements
- People who need to demonstrate sobriety for legal, custody, or probation-related matters
- Those participating in substance abuse treatment programs who want to monitor their progress
- Parents or family members concerned about potential substance use by loved ones
- Individuals in safety-sensitive positions who want to verify their clean status before required testing
- People taking prescription medications who want to understand how they may appear on drug tests
What to expect
Preparation
No special preparation needed. Avoid excessive water consumption before the test as this may dilute your sample and require retesting. Bring a valid photo ID to your appointment.
Sample Type
You'll provide a urine sample in a private collection cup. The process takes just a few minutes in a private restroom facility.
Collection
Visit any participating Quest Diagnostics or LabCorp location. Present your ID and test order confirmation. A trained technician will guide you through the simple collection process while maintaining your privacy and dignity.
Turnaround
Results are typically available within 1-3 business days and will be delivered securely through your online portal with email notification.
Understanding your results
Results are reported as positive (substance concentration at or above the cutoff level) or negative (below the cutoff) for each of the six categories. Each substance has its own cutoff threshold designed to balance sensitivity with specificity, reducing the likelihood of false positives from passive exposure or environmental contamination. If an initial screening is positive, confirmatory testing using a more specific analytical method is typically performed to verify the finding. The lab report will include the specific cutoff levels and reference information applicable to the testing methodology used.
| Population | Reference Range | Notes |
|---|---|---|
| Marijuana (THC) | 50 ng/mL cutoff | Detection window: 3-30 days depending on usage frequency |
| Cocaine metabolite | 150-300 ng/mL cutoff | Detection window: 2-4 days after use |
| Amphetamines | 500 ng/mL cutoff | Detection window: 2-5 days after use |
| Benzodiazepines | 300 ng/mL cutoff | Detection window: 3-8 days, longer for long-acting variants |
| Opiates | 300 ng/mL cutoff | Detection window: 1-3 days for most opiates |
| Oxycodone | 100 ng/mL cutoff | Detection window: 1-3 days after use |
Reference ranges and cutoff levels shown are general guidelines. Your lab report will include the specific cutoff levels and reference ranges used by the laboratory that processed your sample, which is the authoritative standard for interpreting your results.
What does a “Low” result mean?
A negative result means no substances were detected above the cutoff levels. This typically indicates no recent use within the detection window, though very recent use (within hours) or use of substances not included in this panel may not be detected.
What does a “High” result mean?
A positive result indicates that the substance or its metabolites were detected at or above the laboratory's cutoff level. This typically means the substance was used within the detection window for that particular drug. Positive results may require confirmatory testing for legal or employment purposes.
Privacy & confidentiality
Drug test results are treated as confidential medical information and are protected by federal statutes including HIPAA and the Americans with Disabilities Act. Your results are delivered securely through an encrypted online portal and are not shared with employers, insurance companies, or other third parties without your explicit written consent. Test results are stored separately from other records with restricted access to maintain your privacy.
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Last reviewed: April 2026
CPT Code: 80305, 80306, 80307
This test may not be available in: NY, NJ, RI
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.
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LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
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