The medical officer of health of a county or county borough, or a qualified nurse or other authorised officer of the council thereof, may, subject to such conditions, if any, as may be laid down by the council, at all reasonable times enter and inspect any premises which are used, or which that officer has reasonable cause to believe to be used, for the purposes of a nursing home, and inspect any records required to be kept in accordance with the provisions of this Part of this Act:
Provided that nothing in this Part of this Act shall be deemed to authorise any such officer to inspect any medical record relating to a patient in a nursing home.