1. Multiple Choice: Which of the following is NOT a common complication associated with single-ventricle physiology? A) Cyanosis B) Pulmonary overcirculation C) Ventricular hypertrophy D) Atrial septal defect Correct Answer: D) Atrial septal defect Rationale: An atrial septal defect is not a complication but rather a congenital condition that can be present with single-ventricle physiology. 2. True/False: The Fontan procedure is a palliative surgery performed to improve oxygenation in patients with single-ventricle physiology. Correct Answer: True Rationale: The Fontan procedure is indeed a type of surgery that redirects venous blood directly to the pulmonary arteries, bypassing the heart, which can improve oxygenation in these patients. 3. Fill-in-the-Blank: The most c