Every institution shall make provision for every patient to receive medical care by a physician when needed. Every operator of a nursing home and hospital shall promptly provide medical or nursing care whenever required for any patient. If any patient becomes acutely ill or shows a sudden mental deterioration, the next of kin, or some person responsible for the care and maintenance of the patient or designated by him shall be notified at once. Any specific order given by a physician for the treatment or care of any patient shall be reduced to writing by the operator of the institution or by the physician and no medical treatment shall be rendered patients except upon the order of a physician. (Mont. Co. Code 1965, § 89-46.)