שאלה משלב א׳ ברפואה גרעינית · מועד 2020, שאלה 80

Correct: C — pharmacological stress with dipyridamole. In left bundle branch block or a permanent pacemaker, exercise produces a false septal perfusion defect from asynchronous septal contraction and the resulting heterogeneous flow; a vasodilator avoids this because it does not raise heart rate appreciably. Options A and B are exercise protocols that create the artefact; option D, dobutamine, also raises heart rate and so is not preferred.

מקור: Mettler-Ziessman p. p.461