A grandparents' medical consent form allows a parent or legal guardian to hand over all responsibility regarding their child's healthcare decisions. This article contains information on one way that certain nonparents can be allowed to consent to medical treatment of a minor child.Please read this entire form before signing and complete all the sections that apply to your decisions relating to the disclosure. If you or a member of your family has a medical emergency, the physician will need a complete medical history. By completing this form, you are submitting a written request for access to the PHI of the designated individual. This guide includes forms and instructions for a letter and affidavit to request that the court register an outofstate custody order in Texas. This article explains the form a nonparent can use to grant an adult caregiver the authority to make decisions for a child. This guide from TexasLawHelp.