A nurse is reviewing the ABG values of a client who has pneumonia. Which of the following findings indicates the client is developing respiratory acidosis?

Choice A: This is incorrect. The nurse should don clean gloves before removing the dressing, and then change to sterile gloves before applying the new dressing.

Choice B: This is correct. The nurse should offer the client pain medication before the procedure, as changing a dressing for a stage III pressure ulcer can be very painful.

Choice C: This is incorrect. The nurse should prepare the sterile dressing supplies just before the dressing change, not 30 min before, to prevent contamination.

Choice D: This is incorrect. The nurse should not disinfect the wound bed with alcohol, as this can damage the healthy tissue and delay healing. The nurse should use a saline solution or an antiseptic solution as prescribed.

Choice A reason: PaO2 85 mmHg is within the normal range of 80 to 100 mmHg and does not indicate any hypoxemia or oxygen deficiency.

Choice B reason: pH 7.47 is within the normal range of 7.35 to 7.45 and does not indicate any acid-base imbalance.

Choice C reason: HCO3 25 mEq/L is within the normal range of 22 to 26 mEq/L and does not indicate any metabolic disturbance.

Choice D reason: PaCO2 55 mmHg is above the normal range of 35 to 45 mmHg and indicates respiratory acidosis, which is a condition where the lungs cannot eliminate enough carbon dioxide and the blood becomes too acidic. This can be caused by pneumonia, which can impair gas exchange and ventilation.