M4 - Staphylococcus Aureus

Question 1

Is staphylococcus gram +ve or -ve?

Answer 1

Gram +ve

Question 2

What are the 2 main bacteria of skin and soft tissue infection?

Answer 2

Staphylococcus and Streptococci

Question 3

What is the name of the enzyme needed for blood clotting?

Answer 3

Coagulase

Question 4

In blood clotting, what does coagulase form and promote ?

Answer 4

Staphylothrombin and promotes the conversion of fibrinogen to fibrin

Question 5

How are S.aureus and S.epidermis differentiated?

Answer 5

Coagulase positive or negative

Question 6

Is s.aureus coagulase positive or negative?

Answer 6

Positive

Question 7

Is s.epidermis coagulase positive or negative?

Answer 7

negative

Question 8

What bacteria causes MRSA?

Answer 8

S. aureus

Question 9

What do superantigens do?

Answer 9

Overstimulate the immune system?

Question 10

Superantigens overstimulate the immune system and produce?

Answer 10

Cytokine storm

Question 11

What superantigen is responsible for toxic shock?

Answer 11

TSST-1

Question 12

What is TSST-1 responsible for?

Answer 12

Toxic shock

Question 13

What is panton-valentine leucocidin ?

Answer 13

a cytotoxin associated with certain strains of staphylococcus

Question 14

What cytotoxin is present in MRSA?

Answer 14

Panton-valentine leucocidin