Summary of investigations Flashcards
What investigations might you order for suspected eczema?
- Patch testing
- Serum IgE levels
- Skin swab
What investigations might you order for suspected scabies?
- Skin scrape
- Extraction of mite and view under microscopy
What investigations might you order for suspected urticaria?
- Bloods
- Urinalysis
What investigations might you order for suspected lichen planus?
Skin biopsy
What investigations might you order for suspected melanocytic naevi?
Shave or complete excision
What investigations might you order for suspected malignant melanoma?
Local excision biopsy
What investigations might you order for suspected vasculitis?
- Bloods and urinalysis
- Skin biopsy
What investigations might you order for suspected cellulitis/erysipelas?
- Anti-streptococcal O titre
- Skin swab
What investigations might you order for suspected bullous pemphigoid?
Skin biopsy - immunofluorescence showing IgG and C3 at the dermoepidermal junction
What investigations might you order for suspected erythrasma?
Wood’s light - reveals coral red fluorescence
What investigations might you order for suspected fungal nail infection?
- Nail clippings
- Scrapings
What investigations might you order for suspected leukoplakia?
Biopsy
What investigations might you order for suspected pemphigus vulgaris?
Biopsy - acantholysis
What investigations might you order for suspected porphyria cutanea tarda?
Urine:
- elevated uroporphyrinogen
- pink fluorescence of urine under Wood’s lamp
- Serum iron ferritin level used to guide therapy
What investigations might you order for suspected BCC?
- Punch biopsy in minimum
- Standard surgical excision
