Microbiology: Bacterial and Fungal Skin Infections Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

How to diagnose an infection if wound is open

A

Swab the wound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How to diagnose infection if lesion is deeper

A

Sample of pus/tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Colour of staph. aureus on blood agar

A

Golden

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Colour of coagulase negative staph. on blood agar

A

White

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the only staph species that is coagulase positive

A

Staph. aureus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Describe staphylococcus sp.

A

Gram positive cocci in clusters

Both aerobic and anaerobic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What protein does staph. aureus produce and what is its function

A

Coagulase and it clots plasma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How treat with staph. aureus

A

Flucloxacillin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Describe staphylococcal scalded skin syndrome

A

Painful red rash caused by staph aureus which produces a toxin that damages skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Describe impetigo

A

Common and highly contagious bacterial infection that causes sores and blisters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

MRSA treatment options (4)

A

Doxycycline, co-triamoxazole, clindamycin and vanomycin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does staph. saprophyticus cause

A

UTIs in women at child bearing age

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Describe streptococcus sp.

A

Gram positive cocci in chains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does beta haemolytic mean

A

Complete haemolysis has occured

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does alpha haemolytic mean

A

Partial haemolysis has occured

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Examples of group A beta haemolytic infections

A

Throat and skin infections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Examples of group B beta haemolytic infections

A

Meningitis in neonates

18
Q

What is the most common bacteria in pneumonia

A

Strep. pneumoniae

19
Q

What bacteria is a commensal of the throat, mouth, vagina and causes endocarditis

A

Strep. viridans

20
Q

What bacteria is a commensal of the bowel and commonly causes UTIs

A

Enterococcus sp.

21
Q

Describe necrotising fasciitis

A

Bacterial infection spreading along fascial plane below skin surface

22
Q

Describe type 1 necrotising fasciitis

A

Mixed anaerobes and coliforms, usually post abdominal surgery

23
Q

Describe type 2 necrotising fasciitis

A

Group A strep infection

24
Q

When to take swabs in leg ulcers

A

If cellulitis or infection is suspected

25
Q

What does tinea mean

A

Ringworm

26
Q

What does tinea capitis mean

A

Scalp

27
Q

What does tinea barbae mean

A

Beard

28
Q

What does tinea corporis mean

A

Body

29
Q

What does tinea manuum mean

A

Hand

30
Q

What does tinea unguium mean

A

Nails

31
Q

What does tinea cruris mean

A

Groin

32
Q

What does tinea pedis mean

A

Foot (athletes foot)

33
Q

Treatment for dermatophyte infections

A

Clotrimazole

Topical nail paint

34
Q

Treatment for scalp fungal infections

A

Terbinafine orally

Itraconazole orally

35
Q

Where do candida infections often occur

A

Infection in skin folds where are is warm and moist

36
Q

How to diagnose candida

A

Swab for culture

37
Q

Treatment for candida

A

Clotrimoazole cream

Oral flucloxacillin

38
Q

Describe scabies

A

A contagious skin condition caused by tiny mites burrowing into the skin. Causes itching that is worse at night

39
Q

Treatment for scabies

A
Malathion lotion
Benzyl benzoate (avoid in children)
40
Q

Treatment for lice

A

Malathion lotion