Pathogens skin mucous membranes bone

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Author:
HuskerDevil
ID:
42185
Filename:
Pathogens skin mucous membranes bone
Updated:
2010-10-14 14:29:18
Tags:
DPAP2012 Pathogens skin mucous membranes bone
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Description:
Pathogens of skin, mucous membranes and bone
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  1. Normal skin flora- Bacteria
    • Staphylococci
    • Corynebacteria
    • Propionibacteria
    • Streptococci
    • Clostridium perfringens
  2. Normal skin flora- Yeast
    • Candida
    • M. furfur
    • Torulopsis glabrata
  3. Normal oral flora- Aerobes
    • Streptococci (viridans group)
    • Actinomyces israelii
    • Neisseria
    • Haemophilus
  4. Normal oral flora- Anaerobes
    • Peptostreptococcus
    • Lactobacilli
    • Fusobacterium
  5. Herpes simplex
    Vesicles on an erythematous base
  6. Herpes zoster
    Vesicles on an erythematous base
  7. Pox virus
    • Varicella
    • Showers of lesions
    • Lesions in all stages
    • Little papules
    • All stages at the same time (clue to diagnosis)
  8. Coxsackie virus
    • Herpangina
    • Hand/foot/mouth disease
  9. Viral exanthema
    • Skin rashes that follow viremias, usually accompanied by fever.
    • Measles, rubella, roseola, fifth disease
  10. Bite Infections: early infection
    Pasteurella multocida
  11. Bite infections: late infection
    • Staphylococcus spp.
    • Streptococcus spp.
  12. Bite infections: implicated
    • Capnocytophaga canimorsus (cats/dogs)
    • Eikenella corrodens (humans)
  13. Bite infections: rare causes
    • Haemophilus spp.
    • Pseudomonas spp.
  14. Propionibacterium
    Secretes low molecular weight peptide that attracts neutrophils, creating acne.
  15. Mastitis
    • Common postpartum infection
    • Staphylococcus aureus (most common) MSSA and MRSA
    • Group A or Group B Streptococci
    • E. coli
    • Bacteroides
    • Coagulase negative Staphylococci
  16. Impetigo
    • Staph infection on top of the lesion can look like herpes or secondary herpes, difficult to separate out.
    • Treat for both strep and staph.
  17. Classic impetigo
    Group A Streptococcus
  18. Bullous impetigo
    • Staphylococcus aureus
    • "Honey crust"
  19. Cellulitis
    • Group A streptococcus
    • Staph aureus (rare)
  20. Rare causes of cellulitis and abscesses
    • Nocardia
    • Vibrio
    • Vulnificus
  21. Bones
    No normal flora!
  22. Osteomyelitis
    • Usually long bones
    • Usually Staphylococcus aureus, any organism possible
    • Infection by hematogenous spread from cutaneous site
    • Specific diagnosis required for treatment
  23. Osteomyelitis of children
    • Kingella kingae (Gram negative rod)
    • Femur, talus, or calcaneus
  24. Staph aureus infection
    • Boils
    • Furuncles
    • Abscesses
    • *need to know if methicillin resistant or methicillin sensitive

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