RPVI-venous

Question 1

what is abnormal for refill time with ppg

Answer 1

<20 seconds because refill with reflux

Question 2

how do you evaluate reflux with tourniquets?

Answer 2

if normal with tourniquet above the knee then reflux above

failure of above knee and below knee then deep vein insufficiency

Question 3

will ppg work with dvt

Answer 3

NO

Question 4

what is the dvt protocol

Answer 4

compression
color
spectral

Question 5

is acute thrombus hypo or echogenic?

Answer 5

hypo echoic then become echogenic

Question 6

what is the insufficiency criteria for duplex

Answer 6

deep >1 sec
superficial system >.5
perferator >.35 seconds

Question 7

how to tell if reflux?

Answer 7

flow after the augment is in an opposite direction

Question 8

e

Answer 8

right renal artery usually more anterior

Question 9

What are normal ranges for the abdo arteries

Answer 9

prox aorta 23
mid 20
distal 15
CIA 10

Abdo >3 aneurismal or if focal dilation >1cm

Question 10

what does the aorta waveform look like above renals? below the rentals

Answer 10

monophasic

multiphasic

Question 11

sma is high resistance

celiac is low resistance

Answer 11

sma fasting high resistant more triphasic
once post prandial get mono phasic and low resistance
same for IMA

Question 12

ima usually mono phasic (notch does touch line) but high pulsatility

Answer 12

3`

Question 13

what are criteria for >70% for celiac and sma and ima?

Answer 13

> 200cm/s
275 cm/s
200cm/s

Question 14

how do you tell hepatic veins or portal veins?

Answer 14

HV orientation north-south and branch points point to diaphragm
HV< echogenic then PV
HV squiggly (2 steps forward, one step back from atrial kick). blood flow down
PV more continuous flow carrying blood into the liver same direction as arteries
PV east-west

Question 15

what does buds chiari syndrome do

Answer 15

hv or ven cava obstructed with thrombus or timor. flow is then abnormal
<50 cm/sec abnormal

Question 16

cirrhosis

Answer 16

can have thickened GB from ascites
nodules in liver
free fluid

Question 17

what is normal tips flow

Answer 17

135-200 should be >50
turbulent flow
hepatofugal flow (into the liver)
HA PSV 80-130
MOV PSV 30-60

Question 18

tips stenosis

Answer 18

filling defect
MPV 200
velocity change >50 cm/s