RVT Vascular Pathology and Aneurysms 3

Question 1

Which connective tissue disorder is most strongly associated with annuloaortic ectasia and ascending aortic aneurysm?

Accepted Answer

Marfan syndrome

Answer

Marfan syndrome causes fibrillin-1 deficiency, leading to cystic medial necrosis and characteristic annuloaortic ectasia of the ascending aorta.

Question 2

A popliteal artery aneurysm is found incidentally. Which complication is the most frequent cause of morbidity in popliteal aneurysms?

Accepted Answer

Distal embolization and acute limb ischemia

Answer

Popliteal aneurysms most commonly cause morbidity through thrombus embolization leading to acute or chronic limb ischemia, not rupture.

Question 3

On color Doppler imaging, the classic 'yin-yang' sign is associated with which vascular abnormality?

Accepted Answer

Pseudoaneurysm

Answer

The yin-yang sign represents bidirectional swirling flow within a pseudoaneurysm sac, with red and blue halves on color Doppler.

Question 4

Visceral artery aneurysms of the splenic artery are most commonly associated with which clinical condition?

Accepted Answer

Portal hypertension and multiparity

Answer

Splenic artery aneurysms are strongly associated with portal hypertension (increased splenic blood flow) and multiparity (hormonal/hemodynamic effects).

Question 5

Which ultrasound measurement technique is recommended for standardized AAA surveillance to minimize inter-observer variability?

Accepted Answer

Outer wall to outer wall (O-O) measurement perpendicular to the aortic axis

Answer

Outer-to-outer wall measurement perpendicular to the vessel axis (true cross-sectional AP diameter) is the recommended standard for reproducibility.

(RVT) Registered Vascular Technologist Practice Test

(RVT) Registered Vascular Technologist Practice Test

RVT Vascular Pathology and Aneurysms 3