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Exam (elaborations)

Vascular Ultrasound Final Exam Questions and Answers (100% Pass)

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  • Vascular Ultrasound
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  • Vascular Ultrasound

Which are the two main circulatory pathways in the body? Pulmonary and systemic Which type of vessels control the level of resistance within the arterial system by constricting and dilating as necessary? Arterioles The amount of blood ejected from the heart per minute is called: Cardiac o...

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  • November 18, 2024
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Vascular Ultrasound Final Exam
Questions and Answers (100% Pass)
Which are the two main circulatory pathways in the body?


✓ Pulmonary and systemic




Which type of vessels control the level of resistance within the arterial system

by constricting and dilating as necessary?


✓ Arterioles




The amount of blood ejected from the heart per minute is called:


✓ Cardiac output




What units are usually used to measure blood pressure?


✓ mmHg




Select best answer to describe reason for blood flow throughout body


✓ Pressure gradients




If the pressure at the left end of a vessel is 100 mmHg and the pressure at the

right end is 120 mmHg, which way will the fluid flow?

Master01 |Excellent Study Material| Latest update

, 1|Page | © copyright Master01| Grade A+

✓ Right to left




Volumetric flow rate (Q) is defined as the amount of blood that flows past a

certain point per minute (or second). When resistance decreases within the

vessel due to low viscosity, what happens to the volume flow rate?


✓ Increases




Which two factors are directly related to resistance?


✓ Vessel length and viscosity




Poiseuille's equation (volumetric flow rate) is:


✓ Q = (Difference in P x Pi x r^4) / (8 x L x viscosity)




Are greyscale and color Doppler alone considered diagnostic?


✓ No, spectral analysis is needed as well




What 3 things are needed for stenosis to be considered hemodynamically

significant?


✓ Post stenotic turbulence, focal velocity increase, and greyscale

evidence of a narrowing




Master01 |Excellent Study Material| Latest update

, 1|Page | © copyright Master01| Grade A+

According to Bernoulli, what happens to the velocity AND pressure at the

tightest point of stenosis?


✓ Velocity increases and pressure decreases




An abnormal sound heard through a stethoscope caused by turbulent flow.


✓ Bruit




What is Reynolds number?


✓ Tells us that turbulent flow is likely present if the number is over 2,000




The outermost layer of a vessel wall is called:


✓ Tunica adventitia




What is the main form of energy present in blood flow, which is the pressure

distending the vessels?


✓ Potential energy




What is the one layer that comprises capillaries?


✓ Tunica intima




Master01 |Excellent Study Material| Latest update

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