Pictured, from left, are Forrest General respiratory therapists Debbie Bryant, LCRP, and Kim Underwood, LCRP, working with the new CareFusion IOS system.
Thanks to a new piece of technology recently installed in Forrest General’s Respiratory Care Pulmonary Lab, Forrest General patients can breathe easier when it comes to respiratory testing. This new technology is available for patients from two years and up, and is convenient and safe for patients with limited mobility or who use wheelchairs.
The new CareFusion IOS system gives Forrest General staff the capability to conduct effort-independent pulmonary function testing, which allows the patient to simply breathe quietly during measurements. Previously, this type of testing, also called spirometry, required patients to listen and respond to verbal commands and prompts while measurements were being taken. The IOS system, also referred to as Impulse Oscillometry, gives patients peace of mind in knowing that their test results are not affected by their ability to hear and follow the commands. “We are extremely excited to add this new Body Plethysmograph and IOS to our Pulmonary Function Laboratory,” said respiratory therapist Debbie Bryant, LCRP. “We are proud to be a part of an organization that is on the forefront of providing new and innovative technology to the communities we serve.”
IOS is able to differentiate between central and peripheral airway obstructions, which is helpful in diagnosing and monitoring asthma patients. Patients with asthma may not show symptoms with standard spirometry testing, but still show levels of increased airway resistance. IOS measures this resistance at different frequencies making detection easier. IOS can also provide a response for inhaled bronchodilator drug therapy, which often does not reach peripheral airways and is undetectable in regular spirometry testing.
“Forrest General is always striving to provide the most innovative care for our patients, and makes sure the hospital is able to receive the newest, most up-to-date equipment,” said respiratory therapist Kim Underwood, RRT, LCRP. “Forrest General’s Respiratory Department is truly proud and excited to be able to provide this new service to our patients.”

