Dear Parent(s): State law requires that you consent to most medical treatments for your minor child. 1 allows youth who are 16 years of age or older to consent for inpatient mental health services.Minnesota Statute Sec. Minnesota Child (Minor) Medical Consent Form. Use our Child Medical Consent form to let someone make medical decisions for your child in your absence. Important: Please read all instructions and information before completing and signing the form. An incomplete form might not be accepted. 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. Note: A signed parent consent form lasts until the child turns 18, un- less withdrawn. If the consent form is not returned, anyone under 18.