A young patient is experiencing epiglottitis (swelling of the epiglottis). He is working hard to breathe, has stridorous respirations, and is extremely hypoxic. His skin is cyanotic and pulse rapid but strong. Which of the following is most likely causing the poor delivery of oxygen to the cells?
A) Partial occlusion of the airway
B) Impaired transfer of O2 between the lungs and blood
C) Poor function of the heart as a pump
D) Elevation of the heart rate
A
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