NONFERMENTERS AND MISCELLANEOUS GRAM NEGATIVE BACILLI

Question 1

how to differentiate non fermemntrs from enterobacterales

Answer 1

non fermenters are oxidase positive
enterobacterales are oxidase negative except plesiomonas

Question 2

nonfermentative gram negative bacilli or coccobacili are mostly found in what type of environment

Answer 2

moist

Question 3

nonfermenters can withstand treatment with ________

Answer 3

chlorhexidine and quaternary ammonium compounds

Question 4

nonfermenters account for about ____________% of all gram negative bacilli isoalted from clinical specimens

Answer 4

15%

Question 5

it accounts for the largest percentage of all nonfermenters isolated from clinical specimens

Answer 5

pseudomonas

Question 6

what are the species of pseudomonas that are oxidase negative

Answer 6

P.luteolus and P. oryzihabitans

Question 7

the leading cause of healthcare-associated respiratory tract infections specially pneumonia and bacteremia

Answer 7

Pseudomonas aeruginosa

Question 8

pigment of Pseudomonas aeruginosa that gives of yellow green or yellow brown pigmentg

Answer 8

pyoverdin

Question 9

P aeruginosa also produces blue, water-soluble pigment called

Answer 9

pyocyanin

Question 10

pyocyanin + pyoverdin will gives off what color

Answer 10

green

Question 11

odor of P.aeru

Answer 11

grape like

Question 12

green metallic sheen of Pseudomonas aeruginosa is seen in what medium

Answer 12

BAP

Question 13

selective medium of Pseudomonas aeruginosa

Answer 13

cetrimide agar