In reviewing a patient’s overnight sleep study results, you are searching for several key figures.
What represents the sum of the apnea and hypopnea episodes during the study?
                            
                         
                        
                            
                        
                             
                            
                            
                            
                                Explanation
                            
                                
                                    Answer: D - The sum of apnea and hypopnea episodes divided by total sleep time during a sleep study is the AHI.
SOAP is an acronym for subject, objective, assessment, and plan. PCG is a study performed on infants to record heart rate, respiratory pattern, oximetry, and nasal airflow. REM latency is the interval from initial sleep onset to the first occurrence of REM sleep.