Skin and Soft Tissue Disorders Flashcards
When should people receive tetanus vaccinations?
DTaP
• 2, 4, and 6 months
• 15-18 months
• 4-6 years
Tdap
• 11-12 years
• Once for adults
• Td q10 years
Secondary prevention of tetanus includes…
Wound cleansing and debridement
Tetanus toxoid as indicated and TIG when indicated
Vaccination if last Td was >5 years ago
Vaccination protection from tetanus lasts _______
10 years
Common secondary prevention if vaccination >5 years ago
What types of wounds are prone to tetanus?
Longer than 6 hours old
Deep (>1 cm) wounds
Grossly contaminated
Avulsion/puncture/crush
Risk factors for impaired wound healing
Infection Smoking Malnutrition Immobilization Diabetes Vascular disease Immunosuppressive therapy
_____ cause 1% of all ED visits
Animal bites
What type of animal is most likely to bite you and send you to the ED?
DOGS - 60-90% of animal bites
Cats - 5-20%
The microbiology of animal bites is composed of ________ and ______
Oral flora of biting animal
Human skin flora
What microorganisms are most likely to show up in an animal bite?
PASTEURELLA (50% of dog bites and 75% of cat bites)
Staphylococcus
Streptococcus
Anaerobes (bacteroides and fusobacterium)
Dog or cat bite:
Animal frequently knows the human they bite
Dog
60-70% of dog attacks on children <5 involve…
The head and neck
Also on 50% of children 5-10
89% of cat bites are _______
Provoked —> wounds from teeth and claws
What kinds of wounds do cat bites cause?
Long slender teeth —> deep wounds
2/3 involve the upper extremities
Punctures due to cat bites that penetrate below the periosteum may lead to …
Osteomyelitis or septic arthritis
What are the two categories of human bites?
Occlusive wounds
Clenched fist (fight bites)
What pathogens are most likely in human bites?
Eikenella corrodens (gram (-) anaerobe)
Group A strep
Staphylococcus
What is a key thing you need to do when dealing with a human bite?
Measure that shit
If the maxillary inter-canine distance is > ______ it is likely an adult bite
> 2.5cm
What steps are involved in the management of bite wounds?
Hemorrhage control X-ray Anesthesia Inspection Surface cleaned with POVIDONE IODINE Copious irrigation to clean the depths Debridement of devitalized tissues Exploration for foreign bodies and deeper damage Surgical consult if indicated Primary closure for dog bites
Which bite wounds require surgical consult?
Deep, penetrating wounds to the bones, tendons, joints, or other major structures
Complex facial lacerations
Wounds associated with neurovascular compromise
Wounds with complex infections
When are prophylactic antibiotics indicated for bite wounds?
Deep puncture wounds
Moderate to severe wounds with associated crush injury
Underlying venous and/or lymphatic compromise
Wounds on hands, genitalia, face, or in close contact with bone/joint
Wounds requiring closure
Compromised hosts
Most common MOA for plantar punctures
Stepping on a nail
How do you manage plantar punctures?
X-ray Cleansing Removal of foreign body Closure by secondary intent Tetanus Keep clean and watch for SSx of infection
When should you x-ray a plantar puncture?
Inability to completely visualize the interior of the wound
Deep wounds caused by glass
Patient believes there is a retained object
Object is small, breakable, brittle
Object can be seen or felt beneath skin surface
Severe wound pain
Persistent localized pain over wound
Painful mass or discoloration under skin
Missing portion of the object
Injury went through rubber shoe