Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

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.
Don't know
remaining cards
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:
restart all cards
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

Laser doppler

What are the capabilities of laser doppler? 1.Determine healing potential of wound/ulcer and amputation level 2. Used in presence of calcific arteries and edema 3. Evaluate pedal artery flow in diabetics 4. Beneficial in angiosome-guided testing
What does SPP stand for? Skin perfusion pressure
What do photons do? Scatter random directions by both cell types
What does laser doppler used to assess? Characteristics of microvascular blood volume in capillary beds of the skin
What type of waves does laser doppler use?
What are the 2 types of cells use by photons? Red blood cells Station at cells
What are Photons? Light energy
What does a photodetector? Converts optical signal into electrical signal that processes it to determine microvascular blood vokume
Pulse volume recording Volume pulse recording
What does SPP stand for? Skin Perfusion Pressure
What is the prep for SPP? Obtain brachial pressure. Wipe site with alcohol prep. Place cuff and doppler.
What is the likely and marginal healing pressures for skin perfusion? >40 mmhg likely to heal 30-40 mmhg marginally to heal
What is the technique for laser doppler? 1. Pulse volume waveforms rec. 2. Skin perfusion pressure mode & cuff inflates 100mmhg 3. Pressure held 10 sec, watch volume drop to 0.1% 4. If no drop, increase to 20 mmhg 5.repeat til volume drops 6. SPP obtained and Slow deflate 10mmhg every 5 sec
How do you obtain a patient's SPP? 1.Tech sees steady baseline 2.followed by doubling/more of graphs pressure scale 3.patients actual pressure,confirmed by increasing size change of bars on scale during deflation
What are the abnormal pressure for skin perfusion? Dampened or diminished waveforms SPP of <30mmhg less likely to heal
Created by: krwcaw01