An adult client is being admitted to the coronary care unit with a possible myocardial infarction (MI). The client reports feeling like they are going to "pass out." The cardiac monitor displays the rhythm shown. The client's respiratory rate is 12 to 16 breaths/minute and blood pressure is 78/52 mm Hg. The nurse auscultates clear breath sounds bilaterally and the skin is pale and diaphoretic. After administering oxygen, which action should the nurse prepare to perform?

Rationale:
A. Skeletal traction misalignment: While misalignment can cause discomfort and complications in spinal cord injury clients, it is not the most common or immediate trigger of autonomic dysreflexia. Assessment of alignment is secondary to more urgent causes of sympathetic overactivity.

B. Profuse forehead diaphoresis: Sweating is a symptom of autonomic dysreflexia but is a manifestation rather than a precipitating factor. Identifying the cause of the dysreflexia takes priority over treating symptoms alone.

C. An acutely distended bladder: Bladder distension is the most common precipitating factor for autonomic dysreflexia in clients with lesions at T6 or above. Immediate assessment and relief of urinary retention are critical to prevent severe hypertension, stroke, or other life-threatening complications.

D. A severe pounding headache: Headache is a classic symptom of autonomic dysreflexia, reflecting elevated blood pressure. While important to recognize, it indicates the presence of the condition rather than identifying the cause that must be addressed first.

Rationale:
A. Increase the fraction of inspired oxygen: Increasing FiO₂ is only necessary if the client shows signs of hypoxemia or respiratory distress. Since oxygen saturation and respiratory status are not reported as compromised, this is not the immediate intervention.

B. Gather supplies for extubation: The client has been weaned to 0 cm H₂O pressure support, indicating readiness for spontaneous breathing. Preparing extubation supplies ensures the nurse is ready for safe removal of the endotracheal tube when the healthcare provider decides it is appropriate.

C. Set up supplemental oxygen delivery: After extubation, the client may require supplemental oxygen to maintain adequate oxygenation. Setting up oxygen delivery devices in advance promotes a smooth transition from mechanical ventilation to spontaneous breathing.

D. Offer the client ice chips: Ice chips are inappropriate for an intubated client or a client being evaluated for extubation, as swallowing may be impaired and aspiration risk is high. Oral intake should only be introduced after a swallow assessment.

E. Set the ventilator to give mandatory breaths: Providing mandatory breaths may be necessary if the client shows signs of respiratory fatigue or inadequate ventilation. This intervention supports the client temporarily until extubation is safely performed.

F. Suggest a different ventilator mode to the provider: While input may be valuable, the healthcare provider evaluates ventilator management and decides on mode adjustments. The nurse should focus on preparing for extubation and supporting spontaneous breathing.

G. Place a nasogastric tube: NG tube insertion is not indicated solely because the client is being weaned from the ventilator. This intervention is unrelated unless there are concerns about gastric distention or feeding tolerance post-extubation.