USIDMS Renal Doppler
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the criteria for Renal Doppler stenosis? | Stenosis > 60%
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| Why would someone get a renal Doppler? | Uncontrolled hypertension, decreased renal function, abdominal bruit
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| Which renal vein is longer? | The left renal vein is longer.
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| Which renal artery is shorter? | The left renal artery is shorter.
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| What is the course of the blood flow within the kidney? | Renal artery -> Segmental arteries -> Interlobar arteries -> Arcuate arteries -> Interlobular arteries
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| What does a direct Renal Doppler evaluate? | Proximal, middle, and distal renal artery segments as well as the segmental arteries
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| What does a indirect Renal Doppler evaluate? | Segmental and interlobar arteries
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| How do you calculate the Renal- to - Aortic ratio? | Take the highest renal artery velocity and divide it by the peak systolic velocity of the aorta.
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| What are the normal characteristics for kidney blood flow? | High flow velocity (PSV 100 +/- 20cm/s)
Low resistance (RI < 0.75)
High diastolic flow (EDV 30 +/- 5cm/s)
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| What is the criteria for >60% stenosis to occur? | RAR >3.5
PSV >180cm/s
Post stenotic turbulence
Low flow velocity in the distal segment of the renal artery
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Created by:
emhart2
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