Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

DVT423-SW4

USIDMS Hepatic Doppler

QuestionAnswer
What two vessels constitute hepatic inflow? The Hepatic Artery and Portal Vein.
True or False: Sudden onset of ascites, acute abdominal pain, and elevated D-dimer are all indications for a Hepatic Doppler study. True.
True or False: The hepatic veins are intersegmental and contain valves. False. They do not have valves.
What two things affect portal vein diameter and velocity of flow? Patient respiration and ingestion of food.
When is portal vein diameter increased? Portal Hypertension, Congestive Heart Failure, Constrictive pericarditis, and Portal Vein Thrombosis.
What do the Doppler Spectral Waveforms of the portal vein look like? Monophasic and slightly pulsatile or undulating.
What does the Hepatic Vein waveforms look like? Pulsatile triphasic waveform with antegrade and retrograde flow. It changes with the cyclic pressure changes within the heart.
What does the Valsalva maneuver do to the Hepatic Vein waveform? Diminishes the waveform pulsatility.
True or False: The Portal Vein and the Hepatic Artery carry blood flowing in the same direction. True. It is Hepatopetal Flow- toward the liver.
What is the "hepatic buffer response"? When the portal blood flow increases, hepatic arterial flow decreases and vice versa.
Created by: slwilliams2