Unformatted text preview: ions---6 “P’s”---pallor,
paraesthesia, paralysis, pain, polar,
pulselessness. Acute Arterial Occlusion
Treatment: Loosen tight dressing
Thrombolytic therapy- clot busters
Amputation Risks for Vascular Insufficiency
emboli from LV
diabetes mellitus Venous
– stasis of blood flow immobility R heart failure prolonged standing obesity pregnancy – trauma
– hypercoagulable high platelets high hematocrit Alterations in Venous Flow
Result of obstruction to flow or structural alterations.
Incompetent valves (obesity, pregnancy,
right heart failure, prolonged standing)
producing varicose veins, chronic venous
insufficiency, and obstruction by deep vein
Accompanied by edema, venous stasis
ulcers, and pain.
Deep vein thrombosis can be life
threatening. Alterations in Venous Flow
Alterations Varicose Veins
Chronic Venous Insufficiency
Deep Vein Thrombosis Valvular Incompetence
Intimal folds of veins that forms valves can be damaged interfering with blood flow in
the venous system.
Overstretching of the valves owing to
excessive venous pressures resulting in
backflow of blood
• Venous insufficiency
• Varicose veins Varicose Veins
Varicose Impaired venous return results in increased capillary
Impaired pressure causing edema, and superficial, darkened, raised,
and tortuous veins. Primary varicosities may be familial, often first appearing
during Secondary causes of varicosities include extrinsic venous
compression, prior DVT, congenital lesions, arteriovenous
fistulas. Superficial vein that is twisted and enlarged. Occurs most often in lower extremities. Loss of elasticity of the vein wall and incompetent valves. Incompetent valves causes reduction in venous return,
increased venous pressure, and venous stasis.
increased S&S include distended veins, heaviness in legs, swelling in
lower extremities, stasis ulcers.
lower Greater saphenous vein most commonly affected Varicose Vein
Varicose Varicose Vein
Varicose Chronic Venous Insufficiency
Results when va...
View Full Document
- Spring '14
- Atherosclerosis, Thrombus