WAC 246-322-190. Provisions for patients with tuberculosis

A licensee providing inpatient services for mentally ill patients with suspected or known infectious tuberculosis shall: (1) Design patient rooms with: (a) Ventilation to maintain a negative pressure condition in each patient room relative to adjacent spaces, except bath and toilet areas, with: (i) Air movement or exhaust from the patient room to the out-of-doors with the exhaust grille located over the head of the bed; (ii) Exhaust at the rate of six air changes per hour; (iii) Make-up or supply air from adjacent ventilated spaces for four or less air changes per hour, and tempered outside air for two or more air changes per hour; and (iv) Ultraviolet generator irradiation as follows: (A) Use of ultraviolet fluorescent fixtures with lamps emitting wave length of 253.7 nanometers; (B) The average reflected irradiance less than 0.2 microwatts per square centimeter in the room at the five foot level; (C) Wall-mount type of fixture installed over the head of the bed, as close to the ceiling as possible to irradiate the area of the exhaust grille and the ceiling; and (D) Lamps changed as recommended by the manufacturer; and (b) An adjoining bathroom and toilet room with bedpan washer; and (2) Provide discharge information to the health department of the patient's county of residence.