BACTERIAL INFECTIONS OF THE SKIN

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  • Created by: Rose
  • Created on: 19-05-14 08:32
What are the two commonest bacteria causing skin infections?
Staphylococcus aureus & Group A Streptococcus
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What does "SSTI" mean?
"Soft Skin / Tissue Infection"
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Name some innate immune mechanisms of the skin:
Low pH (5.0-6.0), Normal flora residing, Secretions (Sweat, sebum)
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Name two common skin infections
Folliculitis (Boils), Impetigo
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What is folliculitis?
Imflammation/infection of the hair follicles
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What commonly leads to boils?
A break in the skin
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What is the commonest cause of folliculitis?
S. aureus
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Name a rare complication of folliculitis
Abscess
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What is impetigo?
A skin infection leading to pustules that burst and form crusty lesions
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Name the two commonest agents that cause impetigo
S. aureus, Streptococcus pyogenes (Group A Strep)
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Name two less common skin infections
Cellulitis (Erysipelas) & Necrotising fasciitis (Flesh eating bacteria)
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What is cellulitis?
Infection of subcutaneous tissue
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What is a complication of cellulitis?
Can spread to blood
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What are the two commonest agents causing cellulitis?
S. aureus, S. pyogenes (Group A Strep)
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What is the commonest agent causing necrotising fasciitis?
S. pyogenes
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What are two less common agents causing necrotising fasciitis?
Clostridium perfringens & Vibrio vulnificus
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What are the two common agents causing wound infections?
S. aureus, S. pyogenes
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Name two ways a wound infection is diagnosed
Wound swab / Tissue Aspirate
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What is the problem with a wound swab?
Also grows normal flora
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The normal flora of the skin are usually _____
Gram +
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Name some common flora of the skin
Coagulase negative Staph, Candida, SOMETIMES S. aureus, Viridans streptococci
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Card 2

Front

What does "SSTI" mean?

Back

"Soft Skin / Tissue Infection"

Card 3

Front

Name some innate immune mechanisms of the skin:

Back

Preview of the front of card 3

Card 4

Front

Name two common skin infections

Back

Preview of the front of card 4

Card 5

Front

What is folliculitis?

Back

Preview of the front of card 5
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