Bugs

Question 1

Strep Pneumo

Answer 1

GP, lacet shaped, encapsulated diplococcus, alpha hemolysis. Optochin sensitvity, quellung reaction;
Virulence–capsule, IgA prtoeace, Lipoteichoic acid;
risk factors: intoxication, CHF, viral infection, sickle cell, HIV, splenectomy
diagnosis: gram stain/culture; blood culture; urine antigen test; lobar consolidation
diseases: pneumonia, meningitis, sinusitis, otis media

Question 2

Staph Aureus

Answer 2

GP cocci in clusters; coagulase, catalase postive; post-flu disease; CAP and HAP
antibiotic resistant; diffuse bronchopneumonia
probs: necrotizing PNA, Lung Abscess

Question 3

Pseudomonas aeruginosa

Answer 3

GN aerobic bacilli; no lactose; blue-green, grape-like smell; water source; HCAP
CF patients
virulence: endotoxin, exotoxin A,

Question 4

Klebsiella Pneumoniae

Answer 4

k

Question 5

Haemophilius influenzae

Answer 5

k

Question 6

Morazella catarrhalis

Answer 6

k

Question 7

Acinetobacter baumanii

Answer 7

k

Question 8

Mycoplasma pneumonae

Answer 8

atypical pneumona

Question 9

Chlamydophila pneumonae

Answer 9

atypical pneumona

Question 10

Legionella pneumophila

Answer 10

atypical pneumona

Question 11

Atypical pneumona

Answer 11

symptoms, chest x ray are atypical; organism can’t be isolated on routine media

Question 12

Quellung reaction

Answer 12

Strep pneumonia, capsule swelling

Question 13

IgA protease

Answer 13

Strep Pneumoniae

Question 14

Rusty sputum

Answer 14

Strep Pneumo

Question 15

Exotoxin A

Answer 15

pseduomonas
enzyme blocks protein synthesis by inactivating elongation factor EF-2 by ADP ribosylation; results in shutdown of protein synthesis