A person who faints should be positioned on his or her back. The nearest witness who feels comfortable doing so should check the person's airway and breathing. Keep the victim warm. At the hospital, the medical team will try to maintain basic vital functions, such as breathing and blood pressure. The person may need a ventilator , or artificial breathing machine, or medications to maintain blood circulation.
Further treatment is directed at the cause of the loss of consciousness.
For example, glucose, a form of sugar, may be given to a person who has low blood sugar. If a heroin overdose is the reason for unconsciousness, Naloxone can be given to reverse it. Someone with a subdural hematoma may need brain surgery. An individual with an infection may need antibiotics. Side effects depend on the treatments used.