Pulse oximetry is the most common way to measure a patient’s respiratory status in the hospital setting; however, capnography
monitoring is a more accurate and sensitive technique which can more comprehensively measure respiratory function. Due to the
limited number of capnography monitoring equipment at the University of Minnesota Medical Center-Fairview (UMMC-Fairview), we
analyzed which patients should preferentially be chosen for capnography monitoring over pulse oximetry based on risk of respiratory
depression. We conducted a retrospective chart review of all serious opioid-induced over-sedation events that occurred at UMMCFairview
between January 1, 2008 and June 30, 2012. Thirteen risk factors were identified which predispose patients to respiratory
depression. The average patient demonstrated 3.75 risk factors. The most commonly occurring risk factor was the concomitant use
of multiple opioids or an opioid and a CNS-active sedative, followed by an ASA score ≥ 3. Based on this data, we developed a
scorecard for choosing patients at the most risk of developing respiratory depression; these patients are the best candidates for
capnography. Although further studies are necessary to corroborate this research, at this time giving extra consideration to patients
demonstrating the previously stated risk factors is prudent when assessing those patients most in need of capnography.
Developing a Respiratory Depression Scorecard for Capnography Monitoring.
University of Minnesota, College of Pharmacy.
Retrieved from the University of Minnesota Digital Conservancy,
Content distributed via the University of Minnesota's Digital Conservancy may be subject to additional license and use restrictions applied by the depositor.