Skin Surgery Flashcards
1
Q
indications for skin biopsy
A
skin rashes - assist in diagnosis
skin tumours - assist in diagnosis, remove malignancy, remove unwanted skin growth
2
Q
why would biopsy of a rash not provide a diagnosis?
A
Different skin conditions may have same histology e.g. different types of eczema,
One cause of a skin condition can have several histology patterns e.g. drug eruption
the distribution of the lesions is therefore really important and clinical judgement
3
Q
Methods of local anaesthesia
A
topical
local infiltration
nerve block
field block
4
Q
lignocaine (lidocaine)
A
amide, excretion reduced in liver, renal, cardiac failure, young and elderly, max safe dose 50ml 1% lignocaine with adrenaline
5
Q
reduction of pain during local anaesthesia
A
Relax patient Topical local Fine needle Warm local Omit adrenaline Neutralise acidity Massage skin Slow injection Subcutaneous injection Follicle opening Nerve blocks
6
Q
complications of skin biopsy
A
bleeding wound dehiscence infection - only 2% risk scarring motor/sensory nerve damage loss of function
7
Q
electrosurgery
A
variety of electrosurgery units use for haemostats,
treatment of minor skin lesions e.g. skin tags
