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Systems 2nd Year: Infection > Skin and Soft Tissue Infection > Flashcards

Skin and Soft Tissue Infection Flashcards

1
Q

Impetigo is what type of skin infection?

A

Superficial Skin Infection

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2
Q

What is highly suggestive of Impetigo diagnosis

A

golden crust

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3
Q

Impetigo is most common due to what bacteria

A

Staph Aureus

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4
Q

impetigo is least common due to

A

strep pyogenes

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5
Q

Treatment of Impetigo small areas

A

Topical Antibiotics

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6
Q

Treatment of Impetigo large areas

A

Topical Treatment and Oral Antibiotics

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7
Q

What is Erysipelas

A

Infection of Upper Dermis

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8
Q

How does Ersipelas present (5)

A 
Painful
Red Area
Fever
Lymphadenopathy
Lymphangitis
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9
Q

Erysieplas borders presents as

A

Elevated

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10
Q

Erysieplas most common due to what bacteria

A

Strep Pyogenes

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11
Q

70-79% of Erysieplas presents where

A

Lower Limbs

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12
Q

Ersipelas tends to occur where? (5)

A
  • Pre Existing Lymphaoedema
  • Venous Stasis
  • Obesity
  • Paraparesis
  • Diabetes Mellitus
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13
Q

Erysipelas what recurrence rate

A

30%

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14
Q

Cellulitis involves which layers of skin (2)

A

Deep Dermis

Subcut Fat

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15
Q

How does Cellulitis present (2)

A

Spreading erythematous area

No distinct borders

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16
Q

Most likely organisms of Cellulitis (2)

A

Strep Pyogenes and Staph Aureus

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17
Q

Common signs in Cellulitis (3)

A

Fever
Regional Lymphadenopathy
Lymphangitis

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18
Q

Predisposing Factors to Cellulitis (3)

A

Diabetes Mellitus
Tinea Pedis
Lymphadenoedema

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19
Q

Treatment of erysipelas and cellulitis

A

Anti Staph and Anti Strep Antibiotics

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20
Q

What does Folliculitis look like (5)

A 
Circumscribed
Pustular
Up to 5mm in Diameter
Small Red Papules
Central area of Purulence that may rupture/drain
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21
Q

Where is folliculitis typically found (4)

A

Head
Back
Bum
Extremities

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22
Q

Most common organism in Folliculitis

A

Staph Aureus

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23
Q

Furuncles are commonly referred as

A

Boils

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24
Q

Furunculosis is known as

A

Single Hair follicle associated inflammatory nodule

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25
Q

Furunculosis extends into (2)

A

Dermis

Subcutaneous Tissue

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26
Q

Furunculosis usually affects (4)

A

Face
Axilla
Neck
Bum

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27
Q

Most common organism in Furunculosis

A

Staph Aureus

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28
Q

Risk Factors for Furunculosis (5)

A 
Obesity
Diabetes
Atopic Dermatitis
Chronic Kidney Disease
Corticosteroids
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29
Q

What are Carbuncles?

A

When infection extends to involve multiple furuncles

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30
Q

Where are carbuncles often located (3)

A

Back of Neck
Posterior Trunk
Thigh

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31
Q

Treatment for Folliculitis

A

No Treatment

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32
Q

Treatment for Furunculosis

A

No Treatment

33
Q

Carbuncles Treatment

A

Admission to Hospital

34
Q

Where does necrotising fascitis affect

A

any site

35
Q

Risks for developing necrotising fascitis (5)

A 
Diabetes
Surgery
Trauma
Peripheral Vascular Disease
Skin Popping
36
Q

Diabetic Foot Infection or Fournier Gangrene come under what type of Necrotising Fascitis

A

Type I

37
Q

Typical organisms in Necrotising Fascitis (5)

A 
Streptoccci
Staphylocci
Enterococci
Gram Neg Bacii
Clostridium
38
Q

Type 2 Necrotising Fascitis known as

A

Monomicrobial

39
Q

Type 2 Necrotising Fascitis normally associated with

A

Strep Pyogenes

40
Q

Necrotising Fascitis Symptoms (3)

A

Erythema
Oedema
Severe Unremiting Pain

41
Q

Necrotising Fascitis Signs (3)

A

Haemorrhagic Bullae
Skin Necrosis
CCrepitus

42
Q

Necrotising Fascitis Systemic Features (5)

A 
Fever
Hypotension
Tachycardia
Delerium
Multi organ Failure
43
Q

What is common at site of infection in Necrotising Fascitis

A

Anesthesia

44
Q

Management of Necrotising Fascitis (4)

A
  • Surgical Review

- Antibiotics: Flucloxacillin, Gentamicin, Clindamycin

45
Q

Pyomyositis infection located where

A

striated muscle

46
Q

Common sites of Pyomyositis (6)

A 
Thigh
Calf
Arms
Glutes
Chest Wall
Psoas Muscle
47
Q

If Pyomyositis is untreated it can lead to

A

Septic Shock and Death

48
Q

Predisposing Factors to Pymoyositis (6)

A
  • Diabetes
  • HIV
  • IV Drugs
  • Rheumatological Disease
  • Malignancy
  • Liver Cirrhosis
49
Q

Commonest cause of Pyomyositis

A

Staph Aureus

50
Q

Investigation of Pyomysotis

A

CT/MRI

51
Q

Treatment of Pyomyositis

A

Drain with Antibiotics

52
Q

Septic Bursitis commonly affects (2)

A

Patellar

Olecranon

53
Q

Predisposing Factors of Septic Bursitis (6)

A 
Rheumatoid Arthritis
Alcohol
Diabetes
IV Drugs
Immunosuppression
Renal Insufficiency
54
Q

Features of Septic Bursitis (5)

A 
Peribursal Cellulitis 
Swelling
Warmth
Fever
Pain
55
Q

Diagnosis of Septic Arthritis

A

Aspiration of Fluid

56
Q

Most common cause of Septic Bursitis

A

Staph Aureus

57
Q

Most common tendons involved in Infectious Tenosynovitis

A

Flexor Muscle Associated Tendons and Tendon Sheaths of Hand

58
Q

Most common inciting event of Infectious Tenosynovitis

A

Penetrating Trauma

59
Q

Most common bacteria causing Infectious Tenosynovitis (2)

A

Staph Aureus

Streptocci

60
Q

Chronic Infectious Tenosynovitis due to

A

Mycobacteria

61
Q

How does Infectious Tenosynovitis presents with (4)

A
  • Erythematous Fusiform swelling of Finger
  • Held in Semiflexed Position
  • Tender over length of tendon
  • Pain with extension
62
Q

How to Manage Infectious Tenosynovitis (2)

A

Empiric Antibiotics

Hand Surgeon

63
Q

Toxin Mediated Syndromes are a group of

A

pyrogenic exotoxins

64
Q

Diagnostic Criteria for Staphyloccal Toxic Shock syndrome (5)

A
  • Fever
  • Hypotension
  • Diffuse Macular Rash
  • Organs involved: Liver, Blood, Renal, GI, CNS, Muscular
  • Production of TSST1 by Isolate
65
Q

Staphloccal Scaled Skin Syndrome due to what bacteria

A

Staph Aureus

66
Q

Staphloccal Scaled Skin Syndrome characterised by (2)

A

Widespread Bullae

Skin Exfoliation

67
Q

Staphloccal Scaled Skin Syndrome usually occurs in

A

children

68
Q

Staphloccal Scaled Skin Syndrome treatment (2)

A

IV Fluids

Antimicrobials

69
Q

IV Catheter associated infections are what type of infection

A

Nosocomial

70
Q

Risk Factors for IV Catheter Associated infections 93)

A

Infusion >24 Hours
Cannala >72 Hours
Cannula in Lower Limb

71
Q

Most common organism in IV Catheter Associated Infection

A

staph Aureus

72
Q

How long antibiotics for IV Catheter Associated infection

A

14 Days Antibiotics then Echo

73
Q

How often should you change cannula

A

72 hours

74
Q

Classification of Surgical wound: Class I

A

Clean Wound

75
Q

Classification of Surgical wound: Class II

A

Clean but Contaminated

76
Q

Classification of Surgical wound: Class III

A

Contaminated

77
Q

Classification of Surgical wound: Class IV

A

Infected

78
Q

Causes of Surgical site Infection most common

A

-Staph Aureus inc MSSA and MRSA most common

Systems 2nd Year: Infection (11 decks)

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