USMLE Step 2 Quiz
20 questions · no time limit
0:00
PULMONOLOGY
Question 1 of 20
No time limit
Current
Answered
Flagged
Not seen
PASSAGE
A 70-year-old man with a history of systolic heart failure (ejection fraction 35%) is evaluated for daytime sleepiness and fatigue. His wife reports his breathing at night is irregular, with periods of rapid, deep breathing alternating with periods where he stops breathing entirely. A sleep study confirms Cheyne-Stokes respiration with a central apnea-hypopnea index of 25 events/hour. He is on optimal medical therapy for his heart failure.
Which of the following is the most appropriate initial therapy for this patient's sleep-disordered breathing?
YOUR PROGRESS
20
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCD
Next question ↵→
Previous ←
Flag for review F
Answers save as you go · flagged questions come back at the end