You should complete a consent form for each child. Requesting Medical Records.This consent form allows a custodial parent to authorize another individual to make health care decisions for their minor child. Who can sign the consent form? Use our Child Medical Consent form to let someone make medical decisions for your child in your absence. Parents or guardians can complete this form to provide authorization for release of medical information in MyChart. What is proxy access? Complete this form to give Mayo Clinic Health System permission to treat a minor if a parent or legal decision maker cannot be present prior to treatment. A parent or legal guardian must sign this authorization form, which MUST be notarized. I. being the parent (or legal guardian) of the named minor,.