Vascular Chapters 6 And 7

Which principle, effects, or laws apply to decreased pressure with increased flow speed?

Bernoulli's effect

Laminar flow is disrupted and turbulence occurs when the Reynolds number meets or exceeds?

2000

This question Energy = I (current) x R ( resistance) is called _______________ and is often used as an analogy to ___________________.

Ohms law

Poiseuille's law

The highest pressure in the arterial system is found in what region or organ?

Left venitrcle

What arterial wall structure is in direct contact with blood flow?

Endothelium

Perfusion in tissue is controlled by vasoconstriction and vasodilation in what strucuture?

Arterioles

Which of the following is not a risk factor for peripheral arterial disease?

Venous reflux / insufficiency

What is the most significant factor affecting diastolic blood flow in the lower extremities?

Vasoconstriction / dilation in the arterioles

The vasa vasorum supplies blood flow to what structure?

Arterial wall

What symptom is not associated with arterial insufficiency?

Limb swelling

What symptoms are associated with arterial insufficiency?

"Blue toe" syndrome

Dependent rubor

Rest pain in feet and toes

What is another name for the internal iliac artery?

Hypogastric

What is the first major tibial artery branching off the distal popliteal artery?

Anterior tibial artery

What is the most common symptom of peripheral arterial disease?

Claudication

Thromboangititis obliterans is fixed occlusive disease of the digits, what is another name for this condition?

Beurger's disease

The "blue toe" syndrome is a symptom of?

Atheroemboli

Which artery supplies the most blood to the gluteus maximus muscle?

Hypogastric artery

What vessel brings blood to the left atrium?

Pulmonary vein

Increased hematocrit affects what aspect of blood flow?

Viscosity

What percentage of total blood volume is found in the venous system?

70 - 80

According to Poiseuille's law, a change in which of the following factors has the greatest effect on flow?

Vessel radius

The cross sectional area of a vessel can affect flow resistance, what vessel has the largest total cross sectional area?

Capillaries

What CFA waveform characteristic would suggest significant aorto iliac disease?

Delayed rise time

When obtaining ankle blood pressures what is the primary reason for having the patient in a flat supine position?

Reduce/eliminate hydrostatic pressure

Which of the following ankle/brachial indices (ABI) is the most consistent with symptom of ischemic rest pain?

0.3

0.5

0.8

1.0

0.3

Which of the following conditions would cause an abnormal pulse volume recording at the high thigh location?

Significant aortoilliac disease

The reported advantage of the four cuff segmental pressure over the three cuff method is differentiating which of these diseased segments?

Aortoilliac from femoral artery disease

Photoplethysmography uses which of the following modalities for blood flow evlaluation?

Infrared

Which of the following lower arterial test modalities provides diagnostic quantitative information?

Segmental pressures

For accurate blood pressure determination the cuff bladder should be ___________ of the limb circumference?

40%

Pule volume recording is a form of what method?

Pneumo plethysmography

How is ankle to brachial index (ABI) calculated?

Both right and left ankle pressures divided by the highest brachial pressure

While performing segmental pressures on a lower extremity you note a pressure gradient between adjacent two cuffs to equal 15mmHg, what does this finding indicate?

Normal result

Leg pain with exercise that is not due to arterial occlusive disease is often referred to as?

Pseudo-claudication

The dorsalis pedis artery is a continuation of?

Anterior tibial artery