For example, glucose, a form of sugar, may be given through an IV in case the person has low blood sugar. Naloxone, a drug that can reverse a heroin overdose, may be given in case this is the cause. Once the initial tests are back, the cause can often be discovered and more specific treatment can be given. For example, those with a subdural hematoma may need surgery. Those with an infection may need antibiotics.
Side effects depend on the treatments used.
All medications have possible side effects. For example, antibiotics may cause allergic reactions or stomach upset. Surgery carries a risk of bleeding or infection. Ventilators may sometimes cause lung damage or an infection. A person who recovers completely may soon return to normal activities.