Week 11 Flashcards
(7 cards)
What classes of infectious agents most commonly cause infections of the skin, soft tissue, and bone
skin - bacteria, fungi, arthropods
soft tissue - bacteria, helminth
bone - bacteria
List the most common infectious agent for:
- impetigo
- folliculitis
- cellulitis
- necrotising faciitis
- osteomyelitis
Impetigo: S. aureus, Streptococcus pyogenes (Strep A)
Folliculitis: S. aureus, cutibacterium
Cellulitis: S. aureus
Necrotising fasciitis: Streptococcus pyogenes (Strep A), S. aureus
Osteomyelitis: S. aureus
Portals of entry and exit
entry - broken skin barrier
exit - exudate/pus/haemoserus (no exit for bone infections)
List reasons for increased host susceptibility and appropriate interventions for reducing risk
Very-old: frail skin, decreased mucous production, medications (corticosteroids, anticoagulants)
Interventions - cover up/more clothes, reviewing medications
Very young: exposures, unstable on their feet
Interventions: protect sharp edges
Immunocompromised interventions: manage comorbidities, vaccines, wound care, aseptic techniques (chlorhexidine, iodine)
Indwelling device: biofilm formation,
Interventions: antimicrobial cover
Example of exogenous and endogenous reservoir for skin and musculoskeletal infections
Endogenous
- staphyloccocus aureus
- streptococcus sp.
- staphylococcus sp.
Exogenous
- parasites
- spores from soil (Clostridioides spp.)
- gram positive mostly
Clinical presentation and treatment/s for integumentary infection
Clinical presentation
- rash/lesion
- inflammation (pus, redness, swelling, heat)
- pain
Treatment
- topical antimicrobials
- wound irrigation
- debridement
- drainage
- bandaid/icing
- wound packing
- silver dressings
Clinical presentation and treatment/s for musculoskeletal infection
Clinical presentation
- pain
- fever
- decreased ROM
- nausea
- vomiting
Treatment
- amputation
- oral antimicrobials
- IV/IM antimicrobials
- surgery cleaning
- analgesia
- antipyretics
