A 58-year-old man is brought to the emergency department after being found unconscious from alcohol intoxication. Two days later he develops fever, cough, and focal crackles. Chest imaging shows consolidation in the superior segment of the right lower lobe. Which of the following best explains the location of this patient's pneumonia?
- A)Aspiration while supine preferentially enters the right lower lobe superior segmentGABARITO
- B)The carina directs particulate matter equally into both lower lobes
- C)Lymphatic drainage from the pharynx enters the right middle lobe first
- D)The right pulmonary artery has the highest perfusion at baseline
- E)Aspiration while standing preferentially enters the left upper lobe apicoposterior segment
Explicação
Aspiration in a supine patient most often involves the superior segment of the right lower lobe because the right mainstem bronchus is wider and more vertical. Loss of airway protection during intoxication strongly predisposes to this pattern. Different body p... Ver explicação completa e trilha adaptativa →