Every patient hospitalized under any of sections 17a-540 to 17a-550, inclusive, shall receive a physical examination within five days of his hospitalization, and at least once each year thereafter. Every patient shall be examined by a psychiatrist within forty-eight hours of his hospitalization, and at least once each six months thereafter. Reports of all physical and psychiatric examinations shall be completed and signed by the examining physicians and made a part of the patient’s permanent clinical record.