Skin Microbiology - Bacterial/Fungal

Question 1

Gram positive cocci in clusters?

Answer 1

staphylococcus

Question 2

Which type of Staphylococcus is coagulase positive (golden)?

Answer 2

staph aureus

Question 3

What is an antibiotic resistant strain of staph aureus?

Answer 3

Antibiotic resistant strains

Question 4

Which staphylococcus tends to cause UTIs in women?

Answer 4

Staph. saprophyticus

Question 5

Gram positive cocci in chains?

Answer 5

streptococcus

Question 6

What does – β(beta)-haemolytic mean?

Answer 6

complete haemolysis

Question 7

What does α(alpha)-haemolytic mean?

Answer 7

partial haemolysis

Question 8

What does γ(gamma) or non-haemolytic mean?

Answer 8

no haemolysis

Question 9

What bacteria is non haemolytic?

Answer 9

Enterococcus sp.

Question 10

What bacteria is β(beta)-haemolytic?

Answer 10

strep A, strep B

Question 11

What bacteria is α-haemolytic?

Answer 11

Strep. pneumoniae

Strep “viridans”

Question 12

What skin problems tend to be caused by Staph aureus?

Answer 12

Cellulitis
 Infected eczema
 Impetigo
 Wound infection
 Staphylococcal scalded skin syndrome

Question 13

Which bacteria tends to cause Necrotising fasciitis?

Answer 13

Group A strep

Question 14

What causes Erysipelas?

Answer 14

Group A strep

Question 15

What is tinea?

Answer 15

ringworm

Question 16

What is tinea pedis?

Answer 16

athletes foot

Question 17

Who does scalp ringworm mainly affect?

Answer 17

children

Question 18

Which bacteria is the most common cause of ringworm and how is it transmitted?

Answer 18

Trichophyton rubrum

human-human

Question 19

Where does candida tend to cause infections?

Answer 19

in skin folds where area
is warm and moist
E.g. Seen under the breasts in females, groin areas,
abdominal skin folds etc, nappy area in babies

Question 20

What causes scabies?

Answer 20

Sarcoptes scabiei

Question 21

Where in the body does scabies tend to affect?

Answer 21

affecting finger webs, wrists,

genital area

Question 22

Treatment of scabies?

Answer 22

malathion lotion, applied overnight to whole body and
washed off next day
benzyl benzoate (avoid in children)

Question 23

What causes lice?

Answer 23

Pediculus capitis (head louse)
Pediculus corporis (body louse) (vagabond's disease)
Phthirus pubis (pubic louse)

Question 24

What is treatment for lice?

Answer 24

Malathion

Question 25

What type of bacteria can survive in the
environment because of their cell wall
structure?

Answer 25

gram positive