Pneumonia

Question 1

CAP may be caused by:

1) accounts for around 80% of cases
2) ____ ___ (20%)
3) commonly after influenza infection
4) atypical pneumonias e.g. due to what?

Answer 1

1) strep pneumoniae
2) H influenza
3) staph aureus
4) mycoplasma pneumoniae

Question 2

classic cause in alcoholics?

Answer 2

klebsiella pneumoniae

Question 3

most common cause of CAP?

Answer 3

strep pneumoniae (pneumococcus)

Question 4

Characteristic features of pneumococcal pneumonia?

Answer 4

rapid onset
high fever
pleuritic chest pain
herpes labialis (cold sores)

Question 5

in pts with CF or bronchiectasis?

Answer 5

CF: Pseudomonas aeruginosa, staph aureus

CF or bronchiectasis: Pseudomonas aeruginosa

Question 6

causes of atypical pneumonias?

Answer 6

(‘legions of psittaci MCQs’)

Legionella pneumophila
Chlamydia psittaci
Mycoplasma pneumoniae
Chlamydydophila pneumoniae
Q fever (coxiella burnetii)

Question 7

bacteria often implicated in aspiration pneumonia are AEROBIC/ ANAEROBIC

examples?

Answer 7

Aerobic

S pneumoniae
S aureus
H influenza
P aeruginosa

Question 8

pathogen particularly common in COPD pts?

Answer 8

Haemophilus influenzae

Question 9

An atypical pneumonia, often present a dry cough and atypical chest signs/x-ray findings

Autoimmune haemolytic anaemia and erythema multiforme may be seen

Answer 9

Mycoplasma pneumoniae

Question 10

An atypical pneumonia
Hyponatraemia and lymphopenia common
Classically seen secondary to infected air conditioning units

Answer 10

Legionella pneumophilia

Question 11

Pneumocystis jiroveci

1) typically seen in pts with what other infection?
2) presentation?

Answer 11

1) HIV

2) Presents with a dry cough, exercise-induced desaturations and the absence of chest signs