Host infection interactions

Question 1

CAP presentation

Answer 1

cough, 
increased sputum, 
chest pain,
dyspnoea, 
fever, 
CXR with infiltrates

Question 2

typical CAP

Answer 2

streptococcus pneumonia,

haemophilus influenza much less

Question 3

atypical CAP

Answer 3

mycoplasma,
legionella,
chlamydophilia pneumonia,
chlamydia pstiacci,

Question 4

Pneumonia in immunosupressed

Answer 4

pneumocystis jiroveci,
aspergillus,
TB

Question 5

CAP Investigation

Answer 5

sputum culture,
viral PCR,
extra (antigen tests, biomarkers)

Question 6

How can resp. tract infections spread (3)

Answer 6

contact,
airborne (can go long way & linger)
droplet

Question 7

Cystic fibrosis

Answer 7

staph aureus,
pseudo
…….

Question 8

HIV pneumonia, often oral candida think -

Answer 8

pneumocystis jirovecii

Question 9

HIV CD4 <200 pneumonia, often oral candida think -

Answer 9

pneumocystis jirovecii

Question 10

HIV CD4 count <200

Answer 10

pneumocystis jirovecii,

candida

Question 11

transplants (& neutropenia) associated with what bug

Answer 11

aspergillus - culture not perfect

Question 12

risk factors for invasive aspergillosis

Answer 12

cirrhosis, 
COPD, 
malignancy, 
HIV, 
malnutrition, 
post-surgical, 
immunosuppressive

Question 13

Viruses e.g. influenza A/B, CMV, adenovirus, metapneumovirus, Covid can act as risk factors for invasive aspergillus. T/F?

Answer 13

True

Question 14

Something that presents similarly to sepsis but is

Answer 14

MIC-s - multisystem inflammatory syndrome

Question 15

Why are diabetics more likely to ge infection?

Answer 15

decreased T lymphocytes..

,,,

Question 16

Diabetics types of infection

Answer 16

head and neck, 
some Resp, 
GI especially abscesses, cholecystitis,
skin & bone, 
UTI