Pseudomonas And Other Gram Neg Non Fermenters

Question 1

What are the characteristics of pseudomonas aeruginosa

Answer 1

Gram negative bacilli

Oxidase and catalase positive

Motile with single polar flagella

Capsulated

grape like odor

Question 2

When normal cutaneous mucosal barriers have been breached or bypassed like the following

Answer 2

Burn injury 
Penetrating trauma
Surgery
Et tube
Urinary bladder catherization
IV drug use

Question 3

Immunocompromised example that are prone to pseudomonas Infextion

Answer 3

Chemotherapy induced neutropenia

Hypogammablunemia

AIDS

Extreme ages

DM

Px with CF

Cancer px

Question 4

Virulence factor of pseudomonas that inhibits antibiotic killing

Answer 4

Capsule

Question 5

This impairs ciliary function

Answer 5

Pyocyanin

Question 6

Seen in tissue damages seen in skin and cornea

Answer 6

Exotoxin A

Question 7

Drug of choice for pseudomonas infection

Answer 7

Amino glycoside
Gentamicin, tobramycin and amikacin

Beta lactam
Ticarcillin, mezclocillin and piperacillin

Question 8

This is a small fastidious capnophilic gram negative rods

Answer 8

Eikenella corrodens

Question 9

Also known as human bite

Answer 9

Eikenella corrodens

Question 10

Treatment for eikenela corrodens

Answer 10

Ampicillin and sulbactam

Question 11

This is a small, non motile and non pigmented rods

Answer 11

Burkholderia mallei

Question 12

This is a small, motile, gram negative bacillus

Answer 12

Burkholderia pseudo mallei

Question 13

Most common infection of pseudomallei

Answer 13

Pulmonary infection

Question 14

Selective media used for cepacia

Answer 14

Colistin