A patient presents with metabolic alkalosis due to excessive vomiting. Which of the following electrolyte imbalances is most likely to occur in this scenario?

Excessive vomiting leads to the loss of hydrochloric acid, resulting in metabolic alkalosis. As the body tries to compensate for the loss of acid, it retains more bicarbonate ions, leading to an increase in blood pH. Additionally, the kidneys excrete more potassium ions in exchange for hydrogen ions, resulting in hypokalemia.