PERIPHERAL VASCULAR DISEASES Flashcards
Any disease or condition caused by a
disturbance or dysfunction on peripheral
vasculature
PERIPHERAL VASCULAR DISEASES
- A.k.a endothelium; inner lining /
wall of b. vessels
- Tunica intima
- Made up of smooth ms. ; very
well developed in arteries
- Tunica media / intermedia
- Outermost layer of b. vessels ;
very well developed in veins
- Tunica adventitia / externa
- Site of gas exchange
- Walls composed only of a thin
endothelium
Capillaries
- Carry oxygenated blood away
from the heart
- Arteries
- Carry deoxygenated blood towards the heart - Have valves to prevent backflow and so prevent pooling of blood on the LE. - Walls are less rigid and readily change shape when muscles press on them
- Veins
Functions of the Lymphatic System
➢ Drains excess fluid from the interstitial space,
removing excess fluid, blood waste, and
protein molecules (substances that have
leaked out from capillaries)
➢ (+) Immune functions; protect the body from
infections and diseases
Lymphatic Ducts
➢ Thoracic Duct
➢ Right Lymphatic Duct
○ Larger; serves the LE and abdomen; left
side of the arm, neck, and thoracic region
➢ Thoracic Duct
○ Smaller; serves the right side of the arm,
neck, and thoracic region
➢ Right Lymphatic Duct
MOI: ARTERIAL INSUFFICIENCY
Plaques/Atherosclerosis → decreased
oxygen supply → tissue ischemia →
necrosis/ulceration → PVD
Manifestations for ARTERIAL INSUFFICIENCY
Pain
○ Pain for ARTERIAL INSUFFICIENCY
■ Usually described as ___
■ Pain with vascular origin is usually
described as _____
cramping pain
diffuse, pounding, and aching
■ 2 Kinds of Pain
● Resting: c90% blockage; tx is CI
● Intermittent: ≤70% blockage
● Decreased blood supply to
working/exercising muscles
● After a certain duration, pain
will be elicited
■ Intermittent Claudication
90% blockage; tx is CI
● Resting:
≤70% blockage
● Intermittent:
Goal Intermittent Claudication
To increase collateral
circulation of working muscle
“Pins and needles”
sensation; may lead to sensory loss
○ Paresthesia -
d/t/ decrease in nutrients
○ Paralysis -
- d/t decrease in blood supply
○ Pallor
Cold Extremities
○ Polar -
severe consequence of
circulatory disorders
○ Ulcerations -
