Leg Ulcer CH46 Flashcards
Venous insufficiency is by far the most common cause of leg ulcers
True
List other factors that may play an active role in non healing
Non healing include malnutrition, diabetes mellitus, renal disease, other systemic illnesses, and deficiencies of tissue growth factors
Diabetic ulcers are neuropathic but not ischaemic
False, can be both and a mixture can occur
Wound healing stages?
1 - inflammation
2 - proliferation and tissue formation
3 - tissue remodelling
First phase of normal wound healing begins immediately after an acute injury
T
The main cellular constituent of the inflammatory phase is the leukocyte
F, platelets
2nd phase of wound healing is characterised by proliferation, tissue formation and begins 72h after injury
T
Second phase of wound healing is proliferation and tissue formation which only lasts a few days
False, can last up to several weeks
Fibroblasts reconstitute the dermal matrix in phase 2
T - this is called fibroplasia
Third phase of tissue remodelling can last several months after the acute injury
T
ABI of >1.30 indicates non compressible vessels
T
ABI of 1-1.3 is normal
T
ABI of 0.41-0.9 indicates severe peripheral arterial disease
F, severe
ABI of 0.00 - 0.40 indicates severe peripheral arterial disease
T
2015 T/F - external pressure of 35-40mm Hg at ankle is required to prevent capilllary exudation in legs affected by venous disease
T
