Respiratory Medicine

Question 1

What is the FEV1:FVC ratio in an obstructive condition?

Answer 1

<0.7

Question 2

What is the FEV1:FVC ratio in a restrictive condition?

Answer 2

> 0.7

Question 3

What constitutes a positive nitrous oxide test?

Answer 3

A fraction of exhaled nitrous oxide of 35 ppb or above is positive

Question 4

What peak flow variability confirms asthma?

Answer 4

A peak flow variability of greater than 20% is diagnostic of asthma

Question 5

Following administration of salbutamol, a improvement of ….% in the FEV1 would support a diagnosis of asthma?

Answer 5

12%

Question 6

Which organisms cause pneumonia in neonates?

Answer 6

Group B streptococcus
Listeria
E.coli
Staph. Aureus

Question 7

Which organisms cause pneumonia in children aged between 1 month and 2 years?

Answer 7

Viral
S. Pneumoniae
S. Aureus (if resistant to conventional Tx and pneumatoceles are present on CXR)

Question 8

Which organism causes pneumonia most commonly in the over 5s?

Answer 8

Mycoplasma

Question 9

Elevated IgE levels w/ chest infection?

Answer 9

Aspergillosis