1/26 Durrant SSTI Flashcards Preview

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Flashcards in 1/26 Durrant SSTI Deck (72):
1

What is the body's first line of defense?

Intact skin

2

Folliculitis Def

Infection associated with sweat glands

3

WHat causes folliculitis
2

S. Aureus
Pseudomonas Aeruginosa

4

Folliculitis treatment

Soap & Water
Topical antibiotics

5

Acne def

Inflammation of hair follicle and sebaceous gland

6

What causes acne?

Proprionibacterium acnes

7

Whats the most common pathogen of soft tissue abscesses?

S. Auereus

8

Treatment for Soft tissue abscesses

Incission & Drainage
Systemic Antibiotics

9

Types of Soft Tissue abcesses

Furuncle
Carbuncle

10

Furuncle def

Abscess in area of hair follicle

11

Carbuncle def

Multiloculated abcess with spread to subcutaneous tissue

12

Necrotizing Fasciitis Def

Enzyme producing bacteria digest fascial barriers

13

Necrotizing fasciitis causeng pathogens?

Group A Strep
Staph Aureus
Clostridium perfringens

14

What is fournier's Gangrene?

Polymicrobial infection of the genitals involving necrotizing fasciitis

15

Biggest symptom of necrotizing faciitis

Pain is out of proportion compared to exam findings

16

Mosto common pathogen in surgical wounds

S. Aureus

17

Best way to prevent surgical wound infections?

Perioperative antibiotics

18

Fungal infections are scientifically called

Dermatophyte fungi

19

Fungal nail infections are called

Onychomycosis

20

What genres cause fungal infections

1) Trichophyton
2) Microsporum
3) Epidermophyton

21

Most common yeast pathogen

Candida albicans

22

Treatment against fungal infections

Topical antifungals
Systemic antifungals if severe

23

Diaper rash casued by?

yeast

24

intertrigo casued by

Fungus

25

Thrush casued by?

Yeast

26

Impetigo infects what layer of skin?

Epidermis

27

Impetigo definition

Honey Crust

28

What pathogens casue Impetigo?

Group A Strep
S. Aureus

29

Treatment of impetigo

Penicillin
Topical antibiotic

30

Erysipelas infects what layer of skin?

Deep layers of dermis

31

What pathogen causes erysipelas?

Group A Strep

32

Treatment for Erysipelas

Penicillin

33

Cellulitis infects what layer of skin

Subcutaneous

34

What pathogen causes Cellulitis

Group A Strep
S. Aureus

35

Treatment for cellulitis

Systemic antibiotics

36

What factors increase risk of wound infections
4

- Higher num of organisms
- Higher virulence
- Poor circulation near wound
- Poor overall health

37

What type of lesions does staphylococcus aureus create

purulent lesions

38

Staphylococcal Toxins
4

1) Alpha toxin
2) Exfoliatin
3) TSST -1
4) Enterotoxn

39

Enterotoxin effect

Staphylococcal food poinoning

40

TSST - 1 Effect

Toxic shock syndrome

41

Exfoliatin effect

bullous impetigo

42

alpha -toxin effect

Scalded skin syndrome

43

What do beta lactams target on S. Aureus?

Peniccilin binding proteins (PBP)

44

MRSA has what gene that makes new PBP with less affinity for beta lactams?

mecA Gene

45

MRSA is resistant to what beta lactams?

All of them!

46

Treatment for MRSA

DOxycycline, Vancomyacin, trimethoprim-sulfa

47

Risk factors for MRSA

Skin-skin contact
IV drug use
Crowded living conditions

48

Other name for GRoup A Strep

Strep Pyogenes

49

Post strep sequelae
3

1) Pharyngitis
2) Rheymatic fever
3) Glomerulonephritis

50

Strep Toxins
2

- Steptolysins O and S
- Pyrogenic exotoxins A and B

51

Strep Inflammatory ENzymes
3

1) Streptokinase
2) Hyaluronidase
3) DNAse

52

Clostridium Perfringens Gram Stain

Gram Positive

53

C. Perfringens oxygen use

anaerobic

54

C. perfringens shape

rods

55

C. Perfringens produces what in tissue?

Hydrogen and CO2 gas

56

Soft tissue infection caused by C. Perfringens

Gas gangrene

57

Pasteurella Multocida gram stain

GN Rod

58

Where do you get Pasteurella Multocida?

Animal Bites

59

Pseudomonas aeruginosa gram stain

GN Rod

60

P. aeruginosa is found where?

Environment, Water & hospital rooms

61

What causes hot tub folliculitis?

P. Aeruginosa

62

Vibrio vulnificus gram stain

GN Rod

63

What disease is associated with an iron overload and cirrhosis?

Vibrio vulnificus

64

What casues Mycetoma?

Bacterial: actinomyces nocardia
Fungal: many molds

65

What casues sporotrichosis?

Sporotrhrix Schenckii

66

What is sporotrichosis common name?

Rose gardner's thumb (bc patches in a row like a garden)

67

How to get a microbiologic diagnosis?

Often clinical
Pus!

68

Abscess of skin - think?

S. aureus

69

Abscess in mouth, rectum, vagina think?

polymicrobial

70

Cellulitis think?

S. pyogenes

71

Erysipelas think?

S. pyogenes

72

exposure to IV in drug user think?

pseudomonas