405 ILCS 5/2-111

A medical or dental emergency exists when delay for the purpose of obtaining consent would endanger the life or adversely and substantially affect the health of a recipient of services. When a medical or dental emergency exists, if a physician or licensed dentist who examines a recipient determines that the recipient is not capable of giving informed consent, essential medical or dental procedures may be performed without consent. No physician nor licensed dentist shall be liable for a non-negligent good faith determination that a medical or dental emergency exists or a non-negligent good faith determination that the recipient is not capable of giving informed consent.