Biochemical Identification

Question 2

How can we biochemically identify A. baumannii?

Answer 2

Saccharolytic
Glucose oxidizing
Antimicrobial resistance

Question 3

How can we biochemically identify A. Iwoffii?

Answer 3

Asaccharolytic
Glucose negative
Susceptible to almost all antimicrobials

Question 4

How can we biochemically identify P. aeruginosa?

Answer 4

Oxidase positive
Indole negative
Motile
Grows at 42C
ADH positive

Question 5

What can a gastric biopsy specimen be tested for that requires Christensen’s urea medium?

Answer 5

Rapid urease reaction
Rapid color change in 2 hours

Question 6

How can we biochemically identify Camplyobacter spp?

Answer 6

Darting motility
Oxidase positive

Question 7

How can we biochemically identify Plesiomonas?

Answer 7

Oxidase positve
Motile
Glucose fermenting without gas
Susceptible to vibriostat disks

Question 8

How can we identify Aeromonas?

Answer 8

B hemolytic colonies on SBA
Oxidase/Indole positive

Question 9

What is catalase/oxidase positive, reduces nitrate to nitrite, and is susceptible to vibriostatic disk?

Answer 9

Vibrio spp.

Question 10

What are the biochemical reactions of Shigella spp?

Answer 10

Urease negative
H2S negative
Nonmotile

Question 11

What is the IMViC for E. coli?

Answer 11

++–
Indole +
M red +
VP -
Citrate -