Gram Negative Rods - Respiratory Tract

Question 0

GN cocobacillary rods

Requires factor X hemin and V NAD in chocolate agar

Answer 0

H influenzae

Question 1

GN cocobacillary rods

Satellite phenomenon around S aureus

Answer 1

H influenzae

Question 2

GN cocobacillary rods
Polyribitol phosphate
IgA protease

Answer 2

H influenzae type B

Question 3

Spectrum of disease of H influenzae

Answer 3

HaEMOPhilus
Epiglotitis
Meningitis
Otitis media
Pneumonia

Question 4

Stridor
Cherry red epiglottis
Thumb sign
Given ceftriaxone

Answer 4

Epiglotitis

H influenzae

Question 5

Stridor
Stipple sign
Given racemic epinephrine

Answer 5

Laryngotracheal bronchitis

Parainfluenza virus types 1 and 2

Question 6

GN coccobacillary rods
Bordet Gengou agar
Regan Lowe charcoal medium

Answer 6

B pertussis

Question 7

GN coccobacillary rods
Filamentous hemagglutinin which mediates attachment
False adenylate cyclase which inhibits phagocytosis

Answer 7

B pertussis

Question 8

B pertussis toxins

Answer 8

Pertussis toxin - ADP ribosylation and lymphocytosis

Tracheal cytotoxin - epithelial damage and ‘whoop’

Question 9

Paroxysmal patterns of hacking coughs that end with inspiratory whoop
Production of copious amounts of mucus
No pulmonary parenchymal involvement

Answer 9

Pertussis or Tuspirina

B pertussis

Question 10

Phase with the highest yield in bacterial culture for pertussis

Answer 10

Catarrhal phase
1-2 weeks
With symptoms but no cough yet

Question 11

DOC for pertussis

Answer 11

Erythromycin

Question 12

Acellular vaccine with diphtheria and tetanus toxoids

Answer 12

DTaP vaccine

Question 13

Vaccine containing type B capsular polysaccharide conjugated with diphtheria toxin
Given 2-18 mos

Answer 13

HiB vaccine

Question 14

GN coccobacillary rods
Silver stain
Charcoal yeast agar with more iron and cystein

Answer 14

Legionella pneumophila

Question 15

GN coccobacillary rods

Rapid urine antigen test

Answer 15

Legionella

Question 16

Organism in ENVIRONMENTAL WATER SOURCES

Answer 16

Legionella

Question 17

Organism that has ENDOTOXIN as the sole virulence factor

Inhibits phagolysosome fusion

Answer 17

Legionella

Question 18

Pneumonia accompanied by confusion, nonbloody diarrhea, hyponatremia, proteinuria and hematuria

Answer 18

Atypical pneumonia
Chlamydia
Mycoplasma
Legionella

Question 19

Mild flulike illness caused GN coccobacillary rod

Answer 19

Pontiac fever

Legionella

Question 20

DOC for Legionella

Answer 20

Erythromycin or azithromycin

Question 21

DOC for H influenzae

Answer 21

Ceftriaxone

Question 22

Most infectious stage in pertussis

Answer 22

Catarrhal