If bicarbonate is given, the arterial pH and serum calcium should be monitored every two hours during the infusion. The bicarbonate infusion should be discontinued if the urine pH does not rise above 6.5 after three to four hours, if the patient develops symptomatic hypocalcemia, if the arterial pH exceeds 7.5, or if the serum bicarbonate exceeds 30 mEq/L. If the bicarbonate solution is discontinued, volume repletion should be continued with isotonic saline.