As long as the patient is mentally and physically able to make his or her own decisions, medical care cannot begin unless the patient gives informed consent. (American Cancer Society)

Prior to surgery, your child's physician will give you a careful explanation of what procedure will be performed and the risks involved. You will be asked to sign an informed consent form which states in detail that you understand the risks and benefits of your child's surgery. (Morgan Stanley Children's Hospital of New York)

To give informed consent to all procedures and treatment to be rendered, and to have questions answered; and to refuse and/or to discontinue procedures and treatment and to be informed of the consequences of such a decision. (Washington Adventist Hospital)