Organ Transplants Flashcards
T or F? Rejection can be diagnosed via ultrasound?
FALSE - need a biopsy
Post-operative vascular edema causes:
A) Increased blood flow velocity and decreased RI
B) Increased blood flow velocity and increased RI
C) Decreased blood flow velocity and decreased RI
D) Decreased blood flow velocity and increased RI
B
What is the SF of acute hematoma?
A) Anechoic
B) Hypoechoic
C) Echogenic with internal echoes
D) Anechoic with internal echoes
C - Echogenic with internal echoes
Hematomas usually occur within the first how many weeks post op?
A) 2 weeks
B) 3 weeks
C) 4 weeks
D) 5 weeks
A
What do living donors receive in a liver transplant vs cadaver?
Living - segments 5-8 + RHV
Cadaver - Whole liver + celiac axis, portal vein, IVC, bile duct
In a liver transplant, what should the RI of the HA be?
A) 0.3-0.5
B) 0.5-0.7
C) 0.4-0.6
D) 0-6-0.8
B
Will liver rejection show an increased or decreased RI?
Increased
A waveform will show elevated velocities and turbulence in what pathology?
A) Thrombosis
B) Stenosis
C) Rejection
D) Pseudoaneurysm
B
What is the most common VASCULAR complication in a liver transplant?
A) HA stenosis
B) HA thrombosis
C) Portal venous thrombosis
D) Rejection
B
What will NOT be seen in HA stenosis?
A) Tardus parvus
B) High RI
C) Turbulence
D) High velocity flow
B - it will have LOW RI
What is the second most common cause of liver allograft dysfunction following rejection?
Biliary complications - most commonly a stricture at anastomoses site
T or F? Portal venous gas is a common finding in early post-op period
True
What is a renal allograft lifespan of a living vs cadaver donor?
Living = 7-10 years
Cadaver = 15-20 years
Normal RI in the arcuate artery is in the range of what?
A) 0.4-0.5
B) 0.5-0.6
C) 0.6-0.7
D) 0.7-0.8
C
What kind of waveform should you expect in the common femoral and common iliacs?
A) Monophasic
B) Biphasic
C) Triphasic
D) Phasic
C
