124 - Infections of the Skin, Muscles and Soft Tissues Flashcards
Which pathogens lead to vesicles formation?
Varicella & variola
Through which process do varicella and variola cause vesicles formation?
Viremia -> centripetal rash -> macule to vesicle -> vesicle to pustules -> pustule to scabs over the course of 2 weeks
____ is the pathogen causing erysipelas which is characterized by sudden ____ of the ____ or/and ____
Strep pyogenes
swelling
Face
Limbs
In erysipelas ,the infected area has clear ____, usually around the ____ fold, and progress very ____ causing substation ____
borders
Nasolabial
fast
Pain
In erysipelas, flat bullae may develop over the __rd or __th day. Progression to the ___ tissues is rare. Treat with ___.
3rd
4th
Deep
Penicillin
In erysipelas, _____ may continue regardless of treatment, but local ___, ___, and ____ disappear. ____ of the ____starts _____after It starts
Swelling Heat Pain Redness Desquamations Skin 5-10
Which groups are in higher risk for erysipelas? X2
Infants
Elders
Name the common flora colonizing pathogens causing cellulitis
S. aureus
S. pyogenes
What causes purulent cellulitis?
MRSA
Which patients are more susceptible to purulent cellulitis?
Eosinophilic patients
High levels of IgE (Job syndrome)
Carriers of nasal staph
In cellulitis, _____ spreads faster and further, accompanied by ____ and ___
S. pyogenes
Lymphangitis
Fever
What are the common risk factors for recurrent lower limb cellulitis? (2)
- Venous stasis
2. Saphenous venectomy (post CABG)
What is the common risk factor for recurrent cellulitis due to strep infection?
Lymphedema
Which patients are more susceptible to GBS cellulitis?
Elders
Diabetics
PVD
What is the common pathogen causing periorbital cellulitis?
H. Influenza
