If you go to the emergency room while high, the staff will treat you as a patient, not a criminal. Hospitals are legally required to provide emergency care regardless of what substance you’ve used, and federal law specifically protects your substance use information from being shared with law enforcement. The medical team’s priority is making sure you’re physically safe.
That said, the experience can feel intimidating. Here’s what actually happens from the moment you walk in to the moment you leave.
Your Drug Use Stays Between You and Your Doctor
This is the concern most people have, so let’s address it first. Federal privacy rules under HIPAA, plus an additional layer of protection called “Part 2,” make it extremely difficult for hospitals to share your substance use information with police or courts. Part 2 rules apply to any federally assisted program involved in substance use diagnosis or treatment, and they flatly prohibit using patient records in legal proceedings against you without your written consent or a court order paired with a subpoena.
The CARES Act strengthened these protections even further, adding more restrictions on how substance use records can be disclosed in legal proceedings. In practical terms, this means the hospital cannot call the police simply because you tested positive for an illegal drug or told a nurse what you took. Medical staff need honest information to treat you safely, and the law is designed to make sure you can give it without fear.
There are narrow exceptions. If you arrived because of a car accident you caused, or if you’re a danger to yourself or others in a way that meets your state’s criteria for involuntary psychiatric evaluation, police may already be involved for reasons separate from your drug use. But the hospital itself is not going to report you for being high.
What Happens at Triage
When you arrive, a triage nurse will assess how urgently you need care. If you’re conscious and responsive, they’ll ask what you took, how much, and when. Be honest. The answer changes what they watch for and how they treat you. Saying “I smoked weed two hours ago” leads to very different monitoring than “I snorted something I’m not sure about.”
The initial assessment typically includes checking your heart rate, blood pressure, breathing rate, and temperature. Staff will evaluate your level of consciousness, sometimes using a standardized scoring system, and look at your pupils, coordination, and orientation to time and place. They’ll check for physical injuries, unusual movements, and signs of respiratory distress. If you used an injectable drug, they’ll look for needle marks or signs of infection.
Depending on what you report or how you present, the team may order a toxicology screen. This is a urine or blood test that can detect a wide range of substances: alcohol, amphetamines, cocaine, opioids, benzodiazepines, marijuana, PCP, and others. The purpose is medical, not legal. If you’re confused or unconscious and can’t say what you took, this test helps doctors figure out what’s happening in your body so they can respond appropriately.
How Treatment Differs by Substance
What happens next depends entirely on what you’re on and how your body is handling it.
For opioids (heroin, fentanyl, prescription painkillers), the biggest danger is that your breathing slows or stops. If you’re in respiratory distress, the team will administer a medication that rapidly reverses an opioid overdose. You may wake up suddenly and feel terrible, possibly in withdrawal, but you’ll be alive. After that, they’ll monitor you closely because the reversal medication can wear off before the opioid does, meaning you could stop breathing again.
For stimulants (cocaine, methamphetamine), there’s no direct reversal agent. The main risks are dangerously high heart rate, elevated blood pressure, seizures, and overheating. Treatment focuses on cooling you down, bringing your heart rate under control, and using sedating medications if you’re extremely agitated. Stimulant intoxication can also cause intense anxiety or paranoia, and the ER team is trained to manage that without escalating the situation.
For marijuana, most ER visits involve severe anxiety, panic attacks, or intense nausea and vomiting (sometimes from long-term heavy use). Treatment is usually supportive: fluids, anti-nausea medication, and monitoring until you feel better. Serious medical complications from marijuana alone are rare, but the staff won’t dismiss your symptoms.
For alcohol or sedatives like benzodiazepines, the concern is depressed breathing and loss of consciousness. If you’ve combined these with other depressants, the risk multiplies. The team will monitor your vital signs at regular intervals until your levels normalize.
For unknown substances or combinations, expect more thorough monitoring, including repeated heart tracings and possibly IV fluids. When the staff doesn’t know exactly what they’re dealing with, they cast a wider net.
If You Become Agitated or Combative
Some substances cause extreme agitation, aggression, or psychosis. If you reach a point where you’re a danger to yourself or to staff, the hospital can use physical or chemical restraints. Physical restraints mean being strapped to the bed. Chemical restraints mean receiving a sedating injection, typically a fast-acting sedative or antipsychotic.
These measures are supposed to be a last resort, used only when less invasive approaches have failed and there’s a genuine safety risk. Hospital protocols require staff to try verbal de-escalation and a calm environment first. If restraints are used, you’ll be monitored continuously. Nobody wants to restrain a patient, and staff are trained to remove restraints as soon as it’s safe to do so.
When You Can Leave
You generally can’t leave until the medical team determines you’re no longer at immediate risk. That means your vital signs have stabilized, you’re oriented and alert, and there’s no concern that your condition will suddenly worsen once you walk out the door. For something like a marijuana-related panic attack, this might be a few hours. For a fentanyl overdose treated with a reversal agent, you’ll likely be held for observation because the opioid can outlast the antidote.
If you’re conscious, coherent, and not in danger, you generally have the right to leave against medical advice. The staff will explain the risks, ask you to sign a form, and document your decision. They won’t physically stop you unless you meet criteria for an involuntary psychiatric hold, which varies by state but typically requires evidence that you’re an imminent threat to yourself or someone else.
Insurance and Costs
Health insurance cannot deny coverage for an ER visit because you were using drugs. Under the Affordable Care Act, all Marketplace plans must cover substance use disorder treatment as an essential health benefit. Insurers also cannot charge you more or deny future coverage based on a substance use history, since it’s treated the same as any other pre-existing condition. Parity laws require that limits on substance use and mental health coverage can’t be more restrictive than limits on medical or surgical coverage.
If you’re uninsured, you’ll still be treated. Federal law requires emergency departments to stabilize any patient regardless of ability to pay. You will receive a bill afterward, which can be substantial, but many hospitals have financial assistance programs or charity care policies you can apply for.
You May Be Offered Recovery Resources
Many emergency departments have social workers or peer counselors who can talk with you before discharge. They may offer information about detox programs, outpatient counseling, or medication-assisted treatment for opioid or alcohol use disorders. This isn’t mandatory, and you’re free to decline. No one will force you into treatment based on a single ER visit.
That said, if you’re open to it, the ER can be a useful entry point. Hospital social workers can connect you with local programs and sometimes help you get an appointment before you leave. For opioid use specifically, some emergency departments now start patients on medications that reduce cravings and withdrawal symptoms right in the ER, which has been shown to improve the chances of entering longer-term treatment.