<prompt> Metabolic changes associated with excessive vomiting includes the following -Metabolic acidosisHyperchloremiaHypokalemiaDecreases bicarbonates  <response>: Vomiting causes loss of gastric secretions which include HCl K ions, resulting in metabolic alkalosis, hypokalemia and hypochloremia.However note that the moderate to severe hypokalemia seen with excessive vomiting is not merely explained by loss of K ions in vomiting.In fact the hypokalemia is primarily due to increased renal K excretion. Loss of gastric contents results in volume depletion and metabolic alkalosis, both of which promote Kaliuresis. - Harrison 16e, p 259. 