Common causes of pneumonia

Question 1

neonates (<4 wks)

Answer 1

group B strep

E. coli

Question 2

kids (4wks - 18yrs)

Answer 2

RSV, mycoplasma, Chlamydia trachomatis, Chlamydia pneumo (school age), Strep pneumo
‘Runts May Cough Chunky Sputum’

Question 3

adults (18-40yrs)

Answer 3

mycoplasma, Chlamydia pneumo, Strep pneumo

Question 4

older adults (40-65yrs)

Answer 4

Strep pneumo, H. influenzae, anaerobes, viruses, mycoplasma

Question 5

elderly

Answer 5

strep pneumo, influenza, anaerobes, H. influenzae, GNR

Question 6

alcoholics/IVDU

Answer 6

strep pneumo, Klebsiella, S. aureus

Question 7

aspiration

Answer 7

anaerobes: peptostreptococcus, fusobacterium, prevotella, bacteroides (oral NF)

Question 8

atypical

Answer 8

mycoplasma, legionella, chlamydia

Question 9

cystic fibrosis

Answer 9

pseudomonas, S. aureus, Strep pneumo

Question 10

immunocompromised

Answer 10

S. aureus, enteric GNR, fungi, virus, P. jiroveci

Question 11

nosocomial

Answer 11

S. aureus, pseudomonas, other enteric GNR

Question 12

post viral

Answer 12

S. aureus, H. influenzae, strep pneumo