This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Which of the following occur as a result of persistant vomiting? \nSelect and explain. \nA. Hyperkalemia, B. Hypochloraemia, C. Hyperventilation, D. Acidic urine excretion', 'role': 'user'}, {'content': "Answer: B \nExplanation: Hypochloremia usually manifests when its levels are If the urinary Cl- levels are higher (>40 mEq/L), then hypochloremia may be secondary to volume overload or dilution. Increased urinary Cl- can also result from increased mineralocoicoid activity, which leads to the retention of HCO3- and Na+ at the expense of H+, K+, and Cl-. The treatment of chloride-responsive metabolic alkalosis (urinary Cl- = 10 mEq/L) is IV NS administration. Ref: Tintinalli's Emergency Medicine : A Comprehensive Study Guide, 7 Edition, Chapter 21 ; Harrisons Principles of Internal Medicine, 18th Edition, Chapter 45.", 'role': 'assistant'}]