Urgent Care For Pneumonia 5

Question 1

A 40-year-old with cystic fibrosis presents with an acute pneumonia exacerbation. Which organism is the most common culprit in this population?

Accepted Answer

Pseudomonas aeruginosa

Answer

Pseudomonas aeruginosa chronically colonizes and infects the airways of most adults with cystic fibrosis, making it the dominant pathogen in exacerbations.

Question 2

Which of the following is a risk factor specifically for healthcare-associated pneumonia (HCAP) rather than community-acquired pneumonia?

Accepted Answer

Recent hospitalization within the past 90 days

Answer

Hospitalization within the previous 90 days is a defining risk factor for HCAP, which requires broader antibiotic coverage including resistant organisms.

Question 3

A patient presents with pneumonia and is found to have hyponatremia (Na 127 mEq/L) and elevated LFTs. Which atypical organism classically causes this combination?

Accepted Answer

Legionella pneumophila

Answer

Legionella pneumophila characteristically causes hyponatremia, elevated liver enzymes, and GI symptoms alongside pneumonia.

Question 4

Which of the following patients with pneumonia should receive empirical MRSA coverage in the urgent care or ED setting?

Accepted Answer

A post-influenza patient with necrotizing cavitary pneumonia

Answer

Post-influenza necrotizing pneumonia with cavitation strongly suggests CA-MRSA and requires empirical coverage with vancomycin or linezolid.

Question 5

Which of the following is the correct duration of antibiotic therapy for uncomplicated CAP in an outpatient with good clinical response?

Accepted Answer

5 days

Answer

Current IDSA guidelines recommend 5 days of antibiotic therapy for uncomplicated CAP in patients who achieve clinical stability.

Urgent Care Practice Test

Urgent Care Practice Test

Urgent Care For Pneumonia 5