An Emergency Room (ER) is a section of a hospital or other health care facility which provides rapid treatment for people who have sudden illness or trauma. If you have a medical need, there may be alternatives which are better for you than an ER. Preferably, think about those alternatives and when to use which facility as well as other matters so that if there is an emergency, you can act quickly and in your best interest.
Once in an ER, it helps to understand how to maximize your time there.
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NOTE: Some hospitals contract with outside companies to collect debts for them. At least one outside company has been known to station people at emergency rooms. They try to collect past debts before providing emergency service. This is illegal under the Emergency Medical Treatment and Active Labor Act, a federal law which requres hospitals to provide emergency health care regardless of ability to pay (and regardless of citizenship or legal status). If you are asked to pay an old debt or for emergency care before it is delivered, remind the hospital it is against the law.