The nurse is caring for a client with a pulmonary contusion. Assessment reveals restlessness, chest pain on inspiration, diminished breath sounds, and oxygen saturation of 86%. Which acid-base imbalance does the nurse correctly identify? Click on the exhibit button for more information.Exhibit:Laboratory resultspH 7.31Pa02 76 mm Hg (10.11 kPa)PaCO2 54 mm Hg (7.18 kPa)HCO3 24 mEq/L (24 mmol/L)1. Metabolic acidosis2. Metabolic alkalosis3. Respiratory acidosis4. Respiratory alkalosis

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