Staphylococcus Infections of the Skin

Question 1

Bacterial skin infections typically of 2 genera

Answer 1

Streptococcus and STaphylococcus

Question 2

Staphylococcus and Streptococcus may produce

Answer 2

invasive enzymes and damaging toxins

Question 3

staphylococcal skin infections are gram _______ ?

Answer 3

Gram positive; grape like clusters

Question 4

Staphylococcus skin infections are split into two groups…..

Answer 4

those that can coagulase and does who cannot

Question 5

Plasma-clotting virulence factor of Staphylococcus aureus (identifying factor)

Answer 5

coagulase

Question 6

Fibrinogen-binding virulence factor of Staphylococcus aureus (identifying characteristic)

Answer 6

clotting factor

Question 7

Are Coagulase-negative strains common on skin? When do they become pathogenic?

Answer 7

Yes; become pathogenic when skin is broken

Question 8

Example of Coagulase-negative strain

Answer 8

Staphylococcus epidermidis

Question 9

Most pathogenic staphylococci

Answer 9

S. aureus

Question 10

S. aureus mainly resides in ______?

Answer 10

the nasal passages & makes it easy for it to be transported to the skin

Question 11

common skin infections due to S. aureus traveling into skin and eyes that cause simple pimples or furnucles (boils)

Answer 11

Folliculutis; Sty

Question 12

Staphylococci are the most important causative agents of this skin infection that primarily affects young children 2-5 *** YOU HAD IT **

Answer 12

Impetigo

Question 13

Two types of impetigo

Answer 13

Nonbullous and Bullous Impetigo

Question 14

ruptured lesion that forms light colored crusts; spread by autoinoculation

Answer 14

Nonbullous Impetigo

Question 15

scalded skin syndrome caused by Staphlyococcus Toxin A & Toxin B; cause separation of skin layers

Answer 15

Bullous Impetigo (callus impetigo)