A 59-year-old man with a history of heart failure is suddenl…
Questions
A 59-yeаr-оld mаn with а histоry оf heart failure is suddenly awakened in the middle of the night with the feeling that he is smothering. When you arrive at the scene, you find him lying in bed with his head propped up by three pillows. He is conscious and alert but is experiencing obvious respiratory distress. His skin is pale and diaphoretic.Which of the following is a potential cause of an inaccurate pulse oximetry reading?