A request for a medical diagnosis in order to determine eligibility for medical parole under sections 54-131a to 54-131g, inclusive, may be made by the Board of Pardons and Paroles, the Commissioner of Correction, or a correctional institution warden or superintendent, or by request made to the board, commissioner, warden or superintendent by an inmate, an inmate’s spouse, parent, guardian, grandparent, aunt or uncle, sibling, child over the age of eighteen years, or attorney.