This test is basically conducted to compute the quantity of chloride in urine. Our body normally tries to keep its pH level in balance. However, there are certain circumstances that can cause an imbalance in the pH level. If one’s body tissues turn too alkaline one may get metabolic alkalosis, which is the opposite of acidic. One can get metabolic alkalosis from taking certain kind of medication that makes you urinate often. This is also possible after vomiting or having low level of potassium. This could also be caused by an odd medical condition such as or Gitelman syndrome or Bartter syndrome. In case one has metabolic alkalosis, examining the amount of chloride in your urine gives a doctor additional information about your condition.