The nurse is developing the plan of care to include prevention of foot drop for a patient on a mechanical ventilator who is sedated. What intervention should the nurse include in the plan of care?

A. pH 7.37, PaCO2 36, HCO3- 20, SaO2 92%: This ABG shows normal pH and CO2 levels with slightly low bicarbonate and oxygen saturation. These values do not reflect the hypoventilation present in a patient with shallow respirations at 8 breaths per minute, as CO2 would be expected to rise and pH to fall.

B. pH 7.53, PaCO2 35, HCO3- 28, SaO2 90%: This ABG indicates alkalosis with normal CO2 and slightly elevated bicarbonate, consistent with metabolic alkalosis rather than respiratory compromise. A patient with severe hypoventilation would not present with alkalemia or low-normal PaCO2.

C. pH 7.28, PaCO2 53, HCO3- 22, SaO2 89%: This ABG demonstrates respiratory acidosis with hypoxemia, which is consistent with hypoventilation from shallow respirations. The elevated PaCO2 indicates CO2 retention, the low pH shows acidemia, and the reduced SaO2 reflects impaired oxygenation, all expected in chest trauma with inadequate ventilation.

D. pH 7.44, PaCO2 52, HCO3- 34, SaO2 94%: This ABG shows compensated respiratory acidosis with elevated bicarbonate and a near-normal pH. Compensation would not occur immediately in acute trauma; therefore, this pattern does not match the patient’s acute presentation of shallow respirations and impending respiratory failure.

A. Contact respiratory therapy to wean the client from the ventilator: While respiratory therapy plays a key role in ventilator management, this patient has already failed a spontaneous breathing trial. Immediate weaning attempts are unlikely to succeed and could cause fatigue or respiratory compromise. The focus should shift to alternative long-term airway strategies.

B. Discuss the need for a tracheostomy tube during interprofessional rounding: Prolonged intubation (typically >10–14 days) increases the risk of laryngeal injury, ventilator-associated pneumonia, and patient discomfort. Discussing a tracheostomy allows the interprofessional team to evaluate the benefits of a more secure, long-term airway, improve patient comfort, and facilitate eventual weaning from the ventilator.

C. Document the length of time the client has been intubated in the chart: Documentation is important for tracking intubation duration but is not an intervention to address the failed weaning trial. Alone, it does not actively guide management or prevent complications from prolonged intubation.

D. Notify the provider that the endotracheal tube must be replaced in one week: Routine replacement of a functioning endotracheal tube is not indicated. The priority is evaluating long-term airway management options, such as tracheostomy, rather than scheduling elective tube replacement.