Peripheral Vascular Disease Flashcards
Three layers of the arterial system
Tunica intima
Tunica media
Tunica adventitia
Purpose of the lymph nodes
Filtering and phagocytosis
Lymphocyte production
Risk factors of PVD
Smoking
Diabetes
High-fat diet
Hypertension
Threshold for intermitten claudcation in arteriosclerosis obliterans
50% occlusion of vessel
Rest pain occurs when in arteriosclerosis obliterans
80%-90% occlusion of vessel
Signs and symptoms of arteriosclerosis obliterans
Diminished or absent pedal pulse
Positive signs of rubor of dependency
Trophic changes (texture, color, shiness of skin, less hair, thickened nails)
Ulcerations
Buerger’s Disease
Thromboangiitis Obliterans
Affects young male smokers
Inflammatory process starts distal, proceeds proximal
Most common forms of acute arterial occlusive disease
Arterial embolism, arterial thrombosis, vasospastic diseases
Signs and symptoms of acute arterial occlusive disease
Pain Pallor Loss of pulses Paresthesia Paralysis
Raynaud’s syndrome
Spasm of arterioles affect the digits
Cyanosis of digits with cold or emotional upset then there is an intense redness/warmth after vasodilation phase
Acrocyanosis
Cyanosis of distal extremities, usually affecting hands/finger or feet and toes
Caused by arterial spasm in the small arterioles
No rebound erythema
Erythromelalgia
Bilateral vasodilation affecting extremities, especially the feet
Redness, burning, throbbing sensation, and increased skin temperature
Venous thrombosis
Obstruction of the blood flow secondary to collection of coagulated blood
Homan’s signs (DVT)
Edema, girth of limb
Painful palpation
Painful passive stretch of vein
Warmer to touch