Intro to Bacte + Staph

Question 1

Arrangement of flagella in H. pylori

Answer 1

Lophotrichous

Question 2

Branching filaments that are weakly acid fast

Answer 2

Nocardia

Question 3

What is the clinical manifestation of Nocardia in immunocompromised hosts?

Answer 3

TB
Tuberculosis

Question 4

Cocci that is catalase (+) and coagulase (+)

Answer 4

Staphylococcus aureus
S. aureus

Question 5

What antibiotic is used to differentiate coagulase neg staph

Answer 5

Novobiocin

Question 6

What is responsible for the greenish discoloration seen in partial hemolysis?

Answer 6

Formation of acid hematin by H2O2

Question 7

What streptococcus is bacitracin sensitive

Answer 7

Group A strep
Strep pyogenes

Question 8

What sugars are fermented by N. meningitides?

Answer 8

Maltose and glucose

Question 9

What bacilli are slow lactose fermenters

Answer 9

Citrobacter, Serratia

Question 10

Which of the gram pos branching filaments are found in soil?

Answer 10

Nocardia

Question 11

What virulence factor of staphylococci allows insoluble fibrin formation?

Answer 11

Coagulase

Question 12

What is also called as the spreading factor and contributes to sepsis in staph infections?

Answer 12

Hyaluronidase

Question 13

What is cleaved by the exfoliatin toxin to cause SSS

Answer 13

Desmoglein

Question 14

What staph toxin causes marked necrosis of the skin and hemolysis

Answer 14

Alpha toxin

Question 15

This finding in CXRs implies that S. aureus is the causative agent of the patient’s pneumonia

Answer 15

Pneumatocoele

Question 16

This abscess is a finding in osteomyelitis caused by staph; found at the metaphysis

Answer 16

Brodie abscess

Question 17

Pathophysiology of S. epidermidis

Answer 17

Biofilm formation