Registered Respiratory Therapists and certified therapy technicians licensed in the state of Tennessee provide patient care based upon their individualized licensure, certification and level of skill. Services included are PFT with DLCO2 and Nitrogen washout, Nuclear Treadmills, and Complete Holter Monitoring. The department is staffed from 7 a.m. to 5 p.m., Monday-Friday and on call 5 p.m. to 7a.m., Monday-Friday. The department also provides weekend and holiday coverage as needed.