Robbins 9th ed - Chapter 15 - Pulmonary Infections (1)

Question 1

Name some of the bacteria that cause Community-Acquired Pneumonia

Answer 1

Streptococcus pneumoniae (the most common one).
Haemophilus influenzae (mostly paediatric).
Moraxella catarrhalis (common in COPD).
Staphylococcus aureus.
Legionella pneumophila.
Mycoplasma pneumoniae.
Many others, including those causing HAP and viruses.

Question 2

Name some of the bacteria that cause Hospital-Acquired Pneumonia.

Answer 2

Klebsiella.
Pseudomonas.
MRSA.
Others.

Question 3

What is a broad category of bacteria associated with aspiration pneumonia?

Answer 3

Anaerobes from the upper GIT. (often admixed with aerobes that usually cause pneumonia)

Question 4

What is bronchopneumonia?

Answer 4

This is (as opposed to lobar pneumonia) when there is patchy consolidation that often appears across two or more lobes, and/or bilaterally.

Question 5

What is lobar pneumonia?

Answer 5

This is when an entire lobe is full of consolidation. Usually, other lobes are free of disease.

Question 6

What are some of the organisms causing atypical pneumonia?

Answer 6

Mycoplasma pneumoniae.
Chlamydophila pneumoniae.
Coxiella burnetii. (Q fever)
Influenza viruses.

Question 7

What is the most common pathogen causing gram-negative bacterial pneumonia?

Answer 7

Klebsiella pneumoniae.