Dermatology Flashcards
How long do you wait between courses of topical corticosteroids in patients with psoriasis?
4 weeks
What is the first line management of psoriasis?
Corticosteroid once daily plus vitamin D analogue once daily - at separate times. For up to 4 weeks
What is the second line management of psoriasis?
Vitamin D analogue twice daily
What are the features of a keratoacanthoma?
Common in old people. Looks like a crusty volcano, grows to become a crater with keratin in the centre
What are the features of a first degree burn?
superficial epidermal, red and painful, dry, no blisters
What are the features of a second degree burn?
partial thickness (superficial dermal): pale pink, painful, blistered, slow cap refill
partial thickness (deep dermal): typically white but may have non-blanching erythema, reduced sensation, painful to deep pressure
What are the features of a third degree burn?
White waxy/brown leathery/black, no blisters, no pain
How does the body respond to a burn?
release of inflammatory cytokines, sequestration of fluid into third space (fluid loss), immunosupression, bacterial translocation from gut, sepsis
What is the management of a burn?
cover with cling film - layered not wrapped
cleanse wound, Non-adhesive dressing
IV fluids and catheter
What is the first line management of acne?
topical adapalene with topical benzoyl peroxide
topical tretinoin with topical clindamycin
topical benzoyl peroxide with topical clindamycin
When do you give oral abx in acne?
when it is severe. must stop topical abx. given with topical retinoids or benzoyl peroxide
Who can start oral retinoids?
Dermatology - must be referred to start
What are the features of pityriasis rosea?
6-12 weeks, starts with a single pink/red oval patch, the spreads over body in ‘christmas tree’ pattern
