1. Multiple Choice: What is the primary characteristic of hypertrophic cardiomyopathy? A. Dilated ventricles B. Thinning of the ventricular walls C. Hypertrophy of the ventricular walls D. Increased contractility of the heart muscle Answer: C. Hypertrophy of the ventricular walls Rationale: Hypertrophic cardiomyopathy is characterized by abnormal thickening (hypertrophy) of the ventricular walls, leading to impaired filling and emptying of the heart chambers. 2. True/False: Pulmonary embolism is commonly caused by a blood clot that originates in the lungs. Answer: False Rationale: Pulmonary embolism is commonly caused by blood clots that break loose from other parts of the body, usually the legs, and travel to the lungs through the bloodstream. 3. Fill in the blank: In diabetes insipidus, the lack of antidiuretic hormone (ADH) results in ___________ urine ou