TCD
what velocity in the MCA is consistent with a severe vasospasm?
>200cm/sec
Name symptoms of a stroke
what is the most common vessel use for a bypass?
GSV
What are symptoms of venous insufficiency?
Venous claudication, thrombophelebitis, venous ulcers,
what velocity is considered positive for renal artery stenosis.
180cm/s or above
What artery would likely NOT help if there was an ICA occlusion?
vertebral
NAME THE THREE BRANCHES OFF THE AORTIC ARCH IN ORDER.
RT BRACHIOCEPHALIC, LEFT COMMON, LEFT SUBCLAVIAN
what velocity does a bypass graft need to be above?
>35cm/s
how do perforators course?
Superficial to deep
Is the SMA high or low resistive with fasting? After eating?
High when fasting, low after eating
what is the depth range for PCA doppler?
55-75 mm
A diameter reduction of ____ and a cross section diameter reduction of ____ is suggestive of a high stenosis.
what is 50% and 75%
Difference between in-situ and reversed vein grafts
In-situ-end to end, valves are taken out.
Reversed, vein taken out and reversed and valves are left in place.
What is a normal ejection fraction on APG (air plesthmography)
>60%
what phase is exhibited during the 'ring of fire' on ovarian ultrasound
luteal phase
Name the vessels in the anterior circulation
MCA, ICA, ACA
What does the right ICA feed, what circulation?
right, anterior
what is the diameter needed for a dialysis fistula
2.5mm
Where are Cocketts perforators? Dodds?
Cockett-calf, Dodds-thigh
what parameter is most important when evaluating for venous leak
EDV (<6)
What vessel does the Halo device measure?
MCA
What is a sudden constriction in a blood vessel called?
vasospasm-raynolds is an example (sudden is the key word)
what is the most common fistula
Brescia-cimino which is radial artery to cephalic vein.
if a venous insufficiency exam shows venous refill of 10 seconds, is that normal?
no needs to be over 20 seconds.
what is the number one cause of kidney transplant failure
Acute tubular necrosis.