Skin & Soft Tissue Infections Flashcards

1
Q

What is the first line of defense?

A

Intact Skin

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2
Q

What is the classic presentation? (4)

A

Red, Heat, Tumor, Pain

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3
Q

What is Folliculitis?

A

Minor infection with sweat gland activity

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4
Q

What microbs cause Folliculitis?

A

Staph aureus

Pseudomonas aeruginosa

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5
Q

How does acne form?

A

From Propionibacterium trapped in sebaceous glands

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6
Q

What is the difference between Furuncle and Carbuncle

A

Carbuncle is multiloculated abscess and a furuncle is generally one hair follicle (a boil so to say)

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7
Q

What can cause Necrotizing Fasciitis? (4)

A

Group A Strep (Staph aureus
Polymicrobial
Fourniers gangrene
Clostridium perfringens

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8
Q

What is the most common pathogen for skin/ surgical wounds?

A

Staph aureus

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9
Q

What are the 3 fungal infections caused by which generas?

A

Trichophyton
Microssporum
Epidermophyton

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10
Q

What is the most common yeast infection?

A

Candida albicans

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11
Q

What does the Alpha-toxin of staph do?

A

Staph scalded skin syndrome

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12
Q

What does the Exfoliatin toxin of Staph do?

A

bullous impetigo

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13
Q

What does the TSST-1 do?

A

Staph toxic shock syndrome

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14
Q

What does the Enterotoxin do?

A

Staphylococcal food poisoning

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15
Q

What does MRSA have to prevent penacillin?

A

the mecA gene which allows to resist all Beta-lactams

PBP

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16
Q

How do you treat MRSA

A

vancomycin, doxycycline, linezolid

17
Q

Clostridium perfringens

A

GPR
Anaerobic
Spore forming

18
Q

Pasteurella multocida

A

GNR

Animal Bites

19
Q

Pseudomonas aeruginosa

A

GNR
(hot tub folliculitis)
also secondary infection after burns

20
Q

Vibrio vulnificus

A

GNR

associated w/ iron overload

21
Q

What causes Mycetoma

A

Madura foot

Bacterial- Actinomyces, Nocardia

22
Q

what casues Sporotrichosis

A

Sporothrix schenckii

think Rose gardener’s thumb

23
Q

Thrush
Intertrigo
diaper rash

A

are all fungi related

24
Q

How do you get a microbiologic diagnosis?

A

Pus
Biopsies (eh they ight)
Blood cultures

25
Q

dermatophyte fungi is caused from?

A

Tinea cruris, Corporis

“ring Worm”