Cutaneous Infections Flashcards
(21 cards)
Which organism(s) causes impetigo?
Staph. aureus
Rarely strep. pyogenes
Which organism(s) causes cellulitis?
Streps and staphs
What is the treatment for impetigo?
Oral flucloxacillin and penicillin to cover gram positives and negatives
What is the treatment for cellulitis?
Flucloxacillin and penicillin high doses
What is tinea corporis also known as?
Ringworm
Give the name of a topical anti fungal used in the treatment of tinea
Terbinafine
Imidazole (e.g. clotrimazole)
What can be given for the treatment of tinea capitus?
Anti fungal shampoo e.g. ketoconazole
What is the treatment for pityriasis vesicolor?
Ketoconazole shampoo Selenium sulphide (Selsun)
What infection might you suspect if a patient complains of itching in between their fingers?
Scabies
What topical treatment is available for staph / strep skin infections?
Potassium permanganate soaks
Give 4 primary skin manifestations commonly associated with staphylococcal infection
Impetigo
Cellulitis
Folliculitis
Abcesses
4 year old presents with erythematous, crusting lesions around mouth…what is the likely diagnosis?
Impetigo
What type of streptococcus causes impetigo and cellulitis?
Group A beta-haemolytic strep i.e. strep pyogenes
What is the most common fungal infection of the skin?
Tinea
Which fungal infection causes pityriasis versicolour?
Malssezia spp.
What do you call a fungal infection of the nails?
Onychomycosis
What is a kerion?
An abscess caused by a fungal infection. It usually affects the scalp.
What is pediculus captious?
Head lice
How long after an initial infection with scabies does itching normally occur?
Several weeks - there is a ‘lag time’ probably due to a delayed Type IV hypersensitivity reaction to the larvae / eggs in the skin
What are the typical clinical features of a scabies infection?
Itching, especially between finger webs
Linear burrows visible
Erythema
Excoriations
What is the treatment for scabies?
Topical permethrin / malthione
