Treatment logistics

Drug testing in treatment: Types, frequency, and what happens if you fail

Published August 14, 2025 · 7 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals. Editorial process.

Drug testing in treatment serves a clinical purpose, not a punitive one — though it can feel punitive when you are on the receiving end. Understanding how and why it works reduces anxiety and helps you engage with the process productively.

Types of tests

Urine drug screens (UDS) are the most common. They are inexpensive, easy to collect, and detect most substances within a 1-7 day window depending on the drug. Breathalyzers detect very recent alcohol use (within hours). Oral fluid (saliva) tests provide a shorter detection window than urine and are useful for detecting very recent use. Hair follicle tests detect use over a 90-day period but are expensive and less commonly used during treatment. Blood tests are rarely used in treatment settings except for specific medications (lithium levels, for example).

What is being tested for

Standard panels test for opioids, benzodiazepines, amphetamines, cocaine, THC, and alcohol. Expanded panels may add synthetic opioids (fentanyl), which standard opioid panels miss. If you are on MAT, your treatment provider will expect to see your prescribed medication (buprenorphine, methadone) in your results — its absence suggests you are not taking your medication, which is a clinical concern.

What happens if you test positive

In quality treatment programs, a positive test is treated as clinical information, not grounds for punishment or discharge. It triggers a conversation about what happened, an assessment of whether your treatment plan needs adjustment, possible medication changes, increased monitoring or therapy frequency, and in some cases, a step up to a higher level of care. Programs that immediately discharge patients for positive drug tests are acting against clinical best practices and ASAM guidelines. If your program threatens immediate discharge for any use during treatment, that is a red flag about the program's clinical approach.

Find treatment near you

Shelby County Treatment Center

Alabaster, AL

Call 205-216-0200

Lighthouse of Tallapoosa County Inc

Alexander City, AL

Call 256-234-4894

South Central Alabama MHC

Andalusia, AL

Call 334-428-5050

Anniston Fellowship House Inc

Anniston, AL

Call 256-236-7229

Browse all facilities →

Authoritative sources

This article references guidelines from: NIDA · SAMHSA · CDC · FDA · ASAM

Frequently asked questions

How often are you drug tested in rehab?

Frequency varies by program and level of care. Residential programs may test 1-3 times per week. Outpatient programs typically test 1-2 times per week. Court-ordered programs follow jurisdiction-specific schedules.

Can you get kicked out of rehab for failing a drug test?

Quality programs treat positive tests as clinical events, not grounds for discharge. Programs that immediately discharge for positive tests are acting against ASAM guidelines. However, policies vary — ask before admission.

What drugs show up on a rehab drug test?

Standard panels test for opioids, benzodiazepines, amphetamines, cocaine, THC, and alcohol. Fentanyl requires a specific expanded panel as it does not appear on standard opioid screens.

Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.