Microbiology: Bacterial and Fungal Skin Infections Flashcards
How to diagnose an infection if wound is open
Swab the wound
How to diagnose infection if lesion is deeper
Sample of pus/tissue
Colour of staph. aureus on blood agar
Golden
Colour of coagulase negative staph. on blood agar
White
What is the only staph species that is coagulase positive
Staph. aureus
Describe staphylococcus sp.
Gram positive cocci in clusters
Both aerobic and anaerobic
What protein does staph. aureus produce and what is its function
Coagulase and it clots plasma
How treat with staph. aureus
Flucloxacillin
Describe staphylococcal scalded skin syndrome
Painful red rash caused by staph aureus which produces a toxin that damages skin
Describe impetigo
Common and highly contagious bacterial infection that causes sores and blisters
MRSA treatment options (4)
Doxycycline, co-triamoxazole, clindamycin and vanomycin
What does staph. saprophyticus cause
UTIs in women at child bearing age
Describe streptococcus sp.
Gram positive cocci in chains
What does beta haemolytic mean
Complete haemolysis has occured
What does alpha haemolytic mean
Partial haemolysis has occured
Examples of group A beta haemolytic infections
Throat and skin infections