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Chronic Venous Insufficiency - Coggle Diagram
Chronic Venous Insufficiency
What is it?
When veins become distended and blood does not return as well as it used to
A&P
The veins have one way about them so that the bells will ope and then close to prevent blood from back flowing. When the veins become distended, the bells do not function properly creating stasis and blood return is not efficient.
Will see...
Leg swelling
color and texture changes
Color
"Citrine stanining" - brown staining
Blood hangs out in the vessels and leaks out, hemoglobin stains it brown
Texture
Develop dry, thicker, flaky skin
In severe cases ptts' may develop venous ulcers
Nursing Management
Prevent Complications
Infection
Ulcers
Patient ed
Graduated compression stockings
Elevation of legs
Walking
As they walk the muscles contract and help improve blood flow and will help improve venous return
Moisturizing itchy skin
Want to prevent itching, because scratching can cause wounds that are prone to infection
Edema in the tissues, causes blood flow to the skin in that area not to be the best. Once you injury the skin a vicious cycle begins, since it it hard to heal (bot not as bad as with arterial).
Arterial vs. Venous Ulcers
Review patho to help you remember
Arterial
The blood is not getting there, so the tissues are starving
See atrophy, tight, shiny skin, and no hair
Ulcers are dry, may have black esgar, likely to have a cut out appearance, smooth edges commonly over boney prominences
Skin is cold and starved of O2 and nutrients
Venous
Arterial blood is getting down, but your venous blood is not being returned; pooling of blood results in edema
Wounds are wet
Ulcers are painful
Pain stops when the nerves in that area are starved and die
Common over the medial malleolus