The request must be confirmed by two witnesses, at least one of whom is not related to the patient, is not entitled to any portion of the patient's estate, is not the patient's physician, and is not employed by a health care facility caring for the patient. After the request is made, another physician must examine the patient's medical records and confirm the diagnosis. The patient must be determined to be free of a mental condition impairing judgment. If the request is authorized, the patient must wait at least fifteen days and make a second oral request before the prescription may be written. The patient has a right to rescind the request at any time. Should either physician have concerns about the patient's ability to make an informed decision, or feel the patient's request may be motivated by depression or coercion, the patient must be referred for a psychological evaluation.