Ulcers Flashcards
What is the definition of a leg ulcer
any break in the skin of the lower leg above the ankle present more than 4 weeks
What are the causes of leg ulcers?
venous disease arterial disease rheumatoid arthritis diabetic mixed arterial and venous malignant hydrostatic-dependant limb
What is the general difference in pain in venous and arterial disease?
venous tends to have neuropathic pain whilst arterial tends to have ischaemic pain
What are important things to ask about in PMHx of leg ulcers?
varicose veins; DVT; clotting problems; peripheral vascular disease; arterial disease elsewhere; diabetes
Where do venous ulcers tend to be found?
gaiter area; above malleoli
What are features of venous ulcers?
haemosiderin staining (hyperpigmentation); varicose veins; lipodermatosclerosis; atrophie blanche
What is the normal range in ABPI?
0.8-1.3
What is seen in venous eczema?
hyperkeratotic; itchy; very dry
bilateral
scratch marks
How can you differentiate between venous eczema and cellulitis?
venous eczema is bilateral whereas cellulitis is usualy unilateral
What are the pressures created in 4 layer bandaging system?
40mmHg at ankle; 25mmHg below kneee
How long should it take to heal ulcers with the 4 layer bandaging system?
12 weeks
What is the difference in appearance of venous and arterial ulcers?
venous ulcers tend to have a shallow edge whereas arterial ulcers may have very sharp cliff like edges and can be described as being punched out
Where do diabetic and arterial ulcers often present?
pressure sites such as the heel or on the feet