100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Vascular Ultrasound Exam 1 Questions With Complete Solutions $7.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. Vascular Ultrasound
  4.  
  5. Vascular Ultrasound

Exam (elaborations)

Vascular Ultrasound Exam 1 Questions With Complete Solutions
 0 purchase
  • Course
  • Vascular Ultrasound
  • Institution
  • Vascular Ultrasound

List the four sonographic features that are usually evidence for a hemodynamically significant stenosis - ️️proximal velocity signals will be dampened, max velocity at stenosis with spectral broadening, post stenotic turbulence, downstream tardis parvis Pressure is the lowest before, at, or ...

[Show more]

Preview 2 out of 9  pages

Document information

  • October 29, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

Written for

  • Vascular Ultrasound
  • Vascular Ultrasound

Seller

avatar-seller
PatrickKaylian

Reviews received

Content preview

Vascular Ultrasound Exam 1
List the four sonographic features that are usually evidence for a hemodynamically
significant stenosis - ✔️✔️proximal velocity signals will be dampened, max velocity at
stenosis with spectral broadening, post stenotic turbulence, downstream tardis parvis

Pressure is the lowest before, at, or after an obstruction vessel? - ✔️✔️at point of
maximum stenosis, pressure decrease, flow decrease pg. 170 Daigles

The appearance of enlarged channels that attempt to bypass an obstruction or
hemodynamically significant stenosis is called - ✔️✔️collateral vessels, pg. 37 Davies

the type of flow from all blood cells moving at about the same speed is - ✔️✔️plug flow
pg. 20 Davies

the simplified formula for flow, Poiseulli's law - ✔️✔️Q=P/R pg. 168 Daigles/ Davies
pg.22

Poiseuilles equation when the radius is known - ✔️✔️Q= change in P(pi)r^4/ 8nL, pg
168 Daigles

Q - ✔️✔️flow

triangle P - ✔️✔️change in pressure

N - ✔️✔️viscosity

L - ✔️✔️length

What law states that the volumetric flow rate must be constant, proximal,, within distal to
a stenosis - ✔️✔️Continuity rule,

the highest pressure in the cardiovascular system in a normal healthy supine patient is
in - ✔️✔️left ventricle pg. 163 daigle


What system do we have - ✔️✔️a closed loop system, maintain constant flow rate

laminar flow that is found at bifurcation in a region of stenosis - ✔️✔️disturbed flow pg.
165 Daigles

What is the most significant factor contributing to resistance to resistance to flow -
✔️✔️radius of the vessel, pg. 22 Davies

, When there is sudden widening of a vessel, what happens to the flow of blood and
where might this occur? - ✔️✔️flow separation, flow near the outer walls and slows and
reverses then to join the stream , the bulb of carotid

the study of blood flow is called - ✔️✔️hemodynamics


Power doppler - ✔️✔️show if there is any flow at all in vessel

the type of flow that occurs in vessels that feed dilated vascular beds is called -
✔️✔️low resistance flow bed is big ,pg. 28 Davies

the type of waveform that occurs in vessels that feed dilated vascular beds is -
✔️✔️biphasic waveform ,pg. 28 Davies

the type of waveform that appears in leg and arms arteries at rest is called -
✔️✔️triphasic waveform, pg. 29 Davies

Name 3 examples where the velocity measurements may not be accurate -
✔️✔️measuring too close the vessel wall, wrong angle, certain medications, cardiac
effects (arrhythmia)

arteries dilate when exercise, does the pressure change? - ✔️✔️no because they will
be dilated even thouogh flow will be faster

What is a hemodynamically significant stenosis - ✔️✔️diameter and area reduction,
50% or greater, reduction in flow volume and pressure pg. 39 Davies


spectral broadening - ✔️✔️the filling of the spectral window

Tardis parvis - ✔️✔️slow rising

what law states with increasing flow over a stenosis, distal pressures will dramatically
decrease after exercise - ✔️✔️poiseulles law

what law contributes to the ability of airplanes to fly - ✔️✔️bernouillis law

what is known as a change in frequency caused by the motion of a sound source, a
receiver or a reflector - ✔️✔️doppler effect pg. 2 Daigles

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller PatrickKaylian. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

69052 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$7.99
  • (0)
Add to cart
Added