ARDMS Vascular Technology (VT) Exam

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When measuring the maximum diameter of an abdominal aortic aneurysm (AAA) via duplex ultrasound for surveillance, which of the following is the standard, most reproducible technique?

Anterior-posterior diameter measured from inner wall to inner wall in a sagittal plane. Anterior-posterior diameter measured from outer wall to outer wall in a transverse plane. Lumen diameter only, excluding any mural thrombus, in a transverse plane. Transverse diameter measured from outer wall to outer wall in a sagittal plane.

Correct Answer:

Anterior-posterior diameter measured from outer wall to outer wall in a transverse plane.

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