Skin, Soft tissue and Bone infection Flashcards
What are some of the skin specific defences to infections?
Sloughing
Acidic
Low temperature
Salty from sweat
Which organisms are normally present on the skin?
S. epidermisdis
S. Aureus
Beta haemolytic streps
What are the common causative organisms for skin and soft tissue infections?
S. Aureus and streptococcus pyogenes
What are some conditions that expose the skin to invasion?
Exessive moisture Abrasion or surgery Iatrogenic e.g. bed sores Crush injury Burns
What is Impetigo?
It is a superficial skin infection caused by s. aureus or s. pyogenes and characterised by friable gold crusts
What is the treatment for Impetigo?
Topical Fucidin
If widespread then oral flucloxacillin
What is a carbuncule?
Commonly found on thickened areas of skin and extends into subcut layer and can cause formation of multiple abcesses
How does cellulitis present?
The skin will be tender, erythematous and swollen
There will often be fever, melaise and raised WCC and CRP
What are the organisms that cause cellulitis and the treatments?
Commonly S aureus and strep pyogenes
Treated with oral penicillin or flucloxacillin
What is erysipelas?
This is a superficial dermis infection by bacteria and causes raised and well demarkated lesions. Commonly s aureus or s pyogenes treat with flucloxacillin
What is necrotising fasciitis?
It is a medical emergency where there is infection of the fascial planes by one or more orgnaisms
What is the treatment for necrotising fasciitis?
IV antibiotics and surgery
Need to remove infected area
What is the definition of an SSI?
Within 30 days of surgery or 1 year of an inplant
What are some signs of an SSI?
Exudate Pain Swelling Increased local temperature Erythema
How are fungal infections treated?
with imidazoles or other anti-fungal preparations. Resistant cases may require oral triazole therapy
