Hemodynamics & Doppler
Anatomy
Risk Factors/Disease
Symptoms and Disease
Ultrasound Apperance
100
This type of blood flow is found in normal physiologic states and has a parabolic shape
Laminar Flow
100
These vessels branch off of the proximal subclavian arteries
Vertebral arteries
100
Atherosclerosis initially affects what part of the vessel wall?
Intima
100
Most common symptom of peripheral arterial disease
claudication
100
What is the ultrasound sign for fibromuscular dysplasia (FMD)?

String of pearls

String of beads

200
The sound heard with a stethoscope over a stenotic region
Bruit
200
The anterior circulatory system is made up of .....
The carotid arteries and their branches
200
What percentage of lower extremity ulcers are caused by venous disease?
75%
200
Blue toe syndrome is caused by
Thromboemboli
200
What is the ultrasound sign for a pseudoaneurysm?
Ying Yang Sign
300

An increase in the number of frequencies present in the waveform, seen with turbulent flow

Spectral Broadening
300
Smallest vessels in the body
Capillaries
300

True or False?

Diabetes is a major cause of developing a DVT

False
300
An ischemic stroke that occurs when blood flow is restricted from the brain that lasts longer than 24 hours but less than a week is called
Reversible Ischemic Neurologic Deficit (RIND)
300
This type of waveform is rounded, low amplitude with a pronounced delay in the rise and end time of systole
Tardus Parvus Waveform
400
The frequency at which Aliasing occurs
Nyquist Limit
400
Normal Portal vein flow
Hepatopedal
400
The risk of developing venous disease and claudication is how many times greater in diabetic patients?
4x greater risk
400
This condition is caused by non-atherosclerotic narrowing of the brachiocephalic arteries
Takayasu's Arteritis
400
What type of waveform will be seen distal to a stenosis? (Post-stenotic)
Monophasic
500
What law determines the relationship between flow, resistance and pressure
Poiseuille's Law
500
The trifurcation in the lower extremity arterial system consists of what 3 vessels?
ATA, PTA, Peroneal
500
List 3 risk factors for developing atherosclerosis

Familial generic component

Aging

Cholesterol >240 mg/dl - Hypercholesterolemia

Hypertension

Diabetes Mellitus

Severe obesity

Tobacco Use

500
List the 5 P's for acute arterial disease/occlusion

Pain

Pallor

Pulselessness

Paralysis

Paresthesia

500
During a carotid exam, you notice the patient's mid ICA PSV is measuring 198 cm/second, this would indicate what percentage/stenosis of disease?
Moderately Severe (49-80%)
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