A nurse is caring for a client receiving mechanical ventilation. The nurse should prioritize which action associated with neuromuscular blockade use?

A. pH 7.55, PaCO2 30 mm Hg, PaO2 80 mm Hg, HCO3 24 mEq/L: This ABG finding indicates respiratory alkalosis, as evidenced by the elevated pH and decreased PaCO2. In progressive COPD, clients typically retain carbon dioxide rather than blow it off, so this finding would not be expected in a patient with chronic respiratory issues.
B. pH 7.30, PaCO2 60 mm Hg, PaO2 70 mm Hg, HCO3 30 mEq/L: This is the most consistent finding for a client with progressive COPD. The low pH indicates acidosis, and the elevated PaCO2 suggests respiratory acidosis due to carbon dioxide retention, a common problem in COPD. The elevated HCO3 indicates a compensatory metabolic response, as the body attempts to retain bicarbonate to buffer the acidosis.
C. pH 7.40, PaCO2 40 mm Hg, PaO2 94 mm Hg, HCO3 22 mEq/L: These values indicate a normal ABG, which would not be expected in a client with progressive COPD. Patients with chronic lung disease typically present with acid-base imbalances due to respiratory failure, so this finding suggests the client is not exhibiting the expected complications of COPD.
D. pH 7.38, PaCO2 45 mm Hg, PaO2 88 mm Hg, HCO3 26 mEq/L: Although these findings show mild acidosis, the PaCO2 is within normal limits, indicating that this patient may not be experiencing significant respiratory failure. In advanced COPD, one would expect to see a higher PaCO2 and more pronounced acidosis, making this option less characteristic of a patient with progressive COPD compared to option B.

A. Respond to ventilator alarms: While it is crucial to respond to ventilator alarms promptly to ensure the client’s safety and adequate ventilation, this action is not the highest priority in relation to the use of neuromuscular blockers. The use of neuromuscular blockade requires a broader focus on the patient's overall care and safety.
B. Report the absence of spontaneous respirations: Reporting the absence of spontaneous respirations is important, as neuromuscular blockers can cause paralysis of the respiratory muscles. However, the focus should be on maintaining the client's safety and comfort while they are on mechanical ventilation, rather than just reporting findings.
C. Provide passive range-of-motion exercises: This is the priority action when caring for a client receiving neuromuscular blockers. Since the client cannot move voluntarily due to the effects of the neuromuscular blockade, passive range-of-motion exercises are essential to prevent complications such as contractures and muscle atrophy. This intervention helps maintain joint mobility and circulation, which is critical in patients who are mechanically ventilated for an extended period.
D. Encourage the client to attempt to breathe on their own: Encouraging the client to breathe on their own is not appropriate when they are receiving neuromuscular blockade, as their respiratory muscles are paralyzed. Instead, the focus should be on ensuring that the mechanical ventilation settings are adequate to provide proper oxygenation and ventilation while the client cannot initiate breaths independently. This action could lead to respiratory distress if attempted while under neuromuscular blockade.