A 65 year old man develops fever, dry cough, watery diarrhea, and confusion 5 days after staying at a hotel. Temperature is 39.2 C (102.6 F). Chest radiograph shows patchy unilateral infiltrates. Laboratory studies reveal hyponatremia. Sputum gram stain shows many neutrophils but no visible organisms. Which of the following is the most likely causative pathogen?
- A)Chlamydia trachomatis
- B)Mycoplasma pneumoniae
- C)Streptococcus pneumoniae
- D)Legionella pneumophilaGABARITO
- E)Klebsiella pneumoniae
Explicação
Legionella pneumophila is correct. Legionella causes atypical pneumonia with gastrointestinal symptoms, hyponatremia, and exposure to contaminated water systems such as hotels and cooling towers. It stains poorly on gram stain and grows on buffered charcoal ye... Ver explicação completa e trilha adaptativa →