Arterial Insufficiency and Leg Ulcers Flashcards
Angiopathy
poor perfusion of blood supply, nutrients, and oxygen for wound healing
2 types of angiopathy
- macroangiopathy
- microangiopathy
Macroangiopathy
- large vessel disease
- typically affects bilateral lower extremities
Microangiopathy
small vessel disease with possible sclerosis
Why is smoking such an important risk factor for wound care?
it causes vasoconstriction for 30 min to 1 hr
Risk factors for ischemic/arterial ulcers
- arteriosclerosis
- diabetes
- hyperlipidemia
- thrombosis
- smoking
- males >50 yo
Which 2 fingers should I use to check for a pulse?
3rd and 4th
Where to check for a pulse
dorsalis pedis and posterior tibialis
Pulse scale
0 no pulse 1+ barely felt 2+ diminished 3+ normal pulse 4+ bounding
ABI stands for
Ankle Brachial Index
Which of the arterial tests and measures is not always reliable in diabetics?
ABI
How to perform an ABI
- pt in supine with pillow
- place cuff around ankle
- find post tib with doppler and inflate cuff until pulse disappears
- deflate cuff, record number that pulse audible
- repeat using brachial artery (repeat on contralateral extremity using higher value to calculate ABI)
Segmental pressures are usually performed where?
in vascular lab
Ischemic tissues
- lack of oxygen to tissues
- allow and protect for dry demarcation
In ischemic tissues, a lack of oxygen results in
mummification and dry gangrene