Section 600A.2B - Rights and duties of guardianUnless otherwise enlarged or circumscribed by a court or juvenile court having jurisdiction over the minor child or by operation of law, the rights and duties of a guardian with respect to a minor child shall be as follows:
1. To consent to marriage, enlistment in the armed forces of the United States, or medical, psychiatric, or surgical treatment.2. To serve as custodian, unless another person has been appointed custodian.3. To make reasonable visitations if the guardian does not have physical possession or custody of the minor child.4. To consent to adoption and to make any other decision that the parents could have made when the parent-child relationship existed.