Lung

Question 1

What are the features associated with mycoplasma pneumonia?

Answer 1

Graudual onset, flu, then dry cough, bilateral consolidation CXR.

Associated Sx:

Erythemia multiforme/ nodosum
Cold autoimmune haemolytic anaemia (thrombocytopenia)
Meningoencephalitis, Guilin barre
Bullous myringitis (painful vesiculas on tympanic membrane)
Pericarditis
GI: pancreatitis, hepatitis
Acute glomerulonephritis

Question 2

How would you investigate suspected mycoplasma pneumonia?

Answer 2

Look for mycoplasma serology
Do a cold agguntination test (postive)
Chest X-ray (bilateral consolidation)

Question 3

What’s the treatment for mycoplasma pneumonia?

Answer 3

Erythromycin/clarithromycin

Question 4

How do you diagnose legionella pneumonia?

Answer 4

Urinary antigen

Question 5

What additional features would prompt a diagnosis of legionella pneumonia?

Answer 5

Hyponateria, lymphopenia, deranged LFTs,

Question 6

Organism in croup?

Answer 6

Parainfluenza virus

Question 7

Organism in common cold?

Answer 7

Rhinovirus

Question 8

Organism in bronchiolitis?

Answer 8

RSV

Question 9

How would you diagnose latent TB in an adult who is in close contact with someone who has TB?

Answer 9

Mantoux test

Interferon Gamma release assay in specific situations

Question 10

Which organism causing pneumonia often infects people post viral infection?

Answer 10

Staph aureus
See bibasal consolidation on X-ray (+\– abscesses)
Rx: amoxicillin and flucloxacillin