Derm Investigations Flashcards
What investigation would you carry out for ring worm
Skin scrapings for microscopy and culture, and woods light
How to investigate scabies
Skin scraping for microscopy
How to test for impetigo
Swab if lesion sent in bacterial container for microscopy and culture
How to test for shingles
Swab of lesion fluid sent in viral container for PCR
Ix of choice for contact dermatitis
patch testing
diagnostic test for dermatomyositis
muscle biopsy
dermatitis herpetiformes
investigation (and results)
-3 points
bloods: anti-TTG (closely linked with coeliac)
immunoflourescence: shows granular deposits of IgA in dermal papillae
histology: sup-epidermal blisters w/ papillary micro-abscesses
Bullous pemphigoid findings on biopsy
Immunoflourescence shows IgG and C3 at the dermo-epidermal junction
how to investigatie type 1 hypersensitibity
IgE skin prick
Ix for T4 hypersensitivity
patch testing
Ix for neurfibramatosis and when to Ix
Ix of 6 or more cafe au lait spots
Ix is MRI brain
Ix for poryphoria cutanea tards
bloods, woods lamp- urine pink instead of blue
Ix for erythropeotic protoprophryia
quantitive RBS poryphorins and flurocytes
