EP IBHRE questions with correct answers

A blockage to which coronary artery can cause AV Block? - correct answer Posterior Descending Artery most commonly supplied by RCA but could be supplied by the circumflex What type of tissue has the longest refractory period? - correct answer Ventricular Is the femoral vein medial or lateral to the femoral artery? - correct answer The femoral vein is medial to the femoral artery At what value is something statistically significant? - correct answer P0.05 What are the normal cardiac pressures? - correct answer "RA: 2-8 mmHg LA: 5-12 mmHg RV: 15-28 mmHg LV: 90-140 mmHg Aorta: 120 mmHg" While performing a tilt test you see asystole. What is your next step? - correct answer Return patient to the supine position What causes a ice-cream scoop like ST segment? - correct answer Digitalis Toxicity What structure is at the base of the Triangle of Koch? - correct answer CS OS "The phenomenon of capture hysteresis is also known as: a. Wenckebach