LAST RESORT study

Question 1

Name an atypical bacteria causing pneumonia

Answer 1

Mycoplasma Pneumoniae

Question 2

Characteristics of Mycoplasma pneumoniae

Answer 2

Common in young healthy adults

No cell wall, select antibiotics
CRX findings: diffuse interstitial pattern, ground-glass opacity, nodules on CT scan

Question 3

Characteristics of Streptococcus pneumoniae

Answer 3

Most common cause of pneumonia.
Seen in very young and old people, smokers, alcoholics and post-influenza.

Gram-positive, Diplococci
Lobar/airspace pneumonia and air bronchograms are detectable

Rust-coloured sputum
Empyema

Question 4

2 types of selected populations’ bacterial pneumoniae

Answer 4

1. Staphylococcus aureus
2. Pseudomonas aeruginosa

Question 5

Characteristics of staphylococcus aureus

Answer 5

Hospital acquired
Most common cause of death during influenza epidemics

Acquired in post-influenza, elderly and children

Gram-positive, clusters
Can be MSSA or MSRA

Bronchopneumonia: multiple lobes, and pleural effusion in 50% of cases.

Empyema.

Question 6

Example of viral pneumonia

Answer 6

Influenza

Question 7

Characteristics of influenza

Answer 7

common in elderly with chronic ilnesses and children.

Lab tests show elevated white cell count and sputum has minimal bacteria and neutrophis.

Diffuse interstitial pattern.

ARDS, dry cough

Question 8

Characteristics of pseudomonas aeruginosa

Answer 8

Most common hospital-acquired
Common in people with underlying lung disease (COPD or CF) or immunocompromised.

Gram-negative
Rod opportunistic pathogen with high bacterial resistance.

Purulent green sputum.