Before ECT treatments begin, the physician will fully explain the benefits and risks of ECT, and the patient will give consent. The patient is encouraged to ask questions and informed that consent for treatments can be withdrawn at any time and treatments will stop. After giving consent, the patient will receive a complete physical examination, including an electrocardiogram and blood tests. A series of ECTs usually consists of six to twelve treatments. ECT treatments can be administered to either patients inside the hospital, or on an outpatient basis. An intravenous (IV) drip is started and, through it, medications are given to induce sleep and relax the muscles of the body. Once these medications are working, an electrical stimulus is administered through electrodes placed on the head. The electrical stimulus produces brain wave (EEG) changes that are similar to a generalized seizure. It is believed that this seizure activity is what leads to the clinical improvement seen after a series of ECT treatments. About 30-minutes after the treatment, the patient will wake up and is soon oriented enough to eat breakfast and return home—if the treatments are being done in an outpatient setting—or to the Behavioral Health Unit if provided as an inpatient.