A patient was given the diagnosis of congestive heart failure (CHF)2 years ago.The patient complains of increased daytime sleepiness and states his support system has been complaining more and more about snoring.Central sleep apnea is suspected.Treatment depends on whether the patient has hypercapnic or nonhypercapnic central sleep apnea.Which of the following indicates a diagnosis of nonhypercapnic central sleep apnea (CSA)?
A) Polysomnography with absence of airflow for at least 5 seconds
B) Apnea-hypopnea index of 10
C) Peripheral edema, polycythemia, and obesity
D) Insomnia, awakenings accompanied by choking, and normal body mass index

Question

Quizplus · Accepted Answer

Nonhypercapnic central sleep apnea characteristics include daytime sleepiness, insomnia or poor sleep, mild or intermittent snoring, and awakenings accompanied by choking or feeling short of breath; frequently, patients are of normal body weight.CSA can be seen on polysomnography as an absence of airflow and respiratory effort for at least 10 seconds.

A Patient Was Given the Diagnosis of Congestive Heart Failure