[Solved] A 68-year-old man comes to the emergency department due to abdominal pain and nausea for the past 2 days. He has a history of atherosclerotic cardiovascular disease and underwent coronary artery bypass surgery 2 years ago. Blood pressure is 105/65 mm Hg and heart rate is 120/min and irregular. Abdominal examination reveals mild diffuse tenderness and decreased bowel sounds. Laboratory studies are as follows: ECG shows absent P waves and an irregular rate and rhythm. CT scan of the abdomen reveals colonic wall thickening and no enhancement with intravenous contrast. Urinalysis shows acidic urine. Renal metabolism of which of the following amino acids is most important for maximizing acid excretion in this patient? A)Alanine B)Arginine C)Aspartate D)Glutamine E)Histidine Fireproof: A property of material or construction that provides resistance to fire, preventing or delaying the spread of fire. Insured: The individual or entity covered by an insurance policy, who is entitled to benefits in case of a covered loss. Insurance Agent: A professional authorized to sell and advise on insurance policies, acting as an intermediary between insurers and policyholders. Liability Coverage: Insurance protection against claims resulting from injuries and damage to people and/or property.