A client has a nasogastric (NG) tube placed during abdominal surgery. During postoperative convalescence, the nurse identifies that the client is manifesting a hand tremor, muscle twitching, and confusion. Which arterial blood gases consistent with metabolic alkalosis should the nurse report to the healthcare provider? Reference Range pH 17.35 to 7.45] PaCO2 135 to 45 mm Hg] HCO3 [21 to 28 mEq/L or 21 to 28 mmol/L] PaO2 [80 to 100 mm Hg]