A nurse is caring for a patient with Guillain-Barré syndrome who is experiencing progressive muscle weakness. Which nursing intervention should be the highest priority to ensure patient safety?

Respiratory monitoring is the highest priority safety intervention for patients with Guillain-Barré syndrome due to the risk of ascending paralysis affecting respiratory muscles, which can lead to respiratory failure. Other options are important but secondary to immediate safety.

Clinical Priority in Ascending Paralysis

In Guillain-Barré syndrome (GBS), an acute immune-mediated polyradiculoneuropathy, the classic presentation is a symmetric, ascending weakness that can progress to the muscles of respiration. The foundational principle of nursing care for this condition is that GBS is a major cause of neuromuscular respiratory failure globally ^[1]. As the paralysis ascends, it can involve the diaphragm and intercostal muscles, leading to ineffective ventilation and a life-threatening emergency. Therefore, the highest priority nursing intervention is derived directly from the Airway, Breathing, Circulation (ABC) framework.

Why Respiratory Monitoring is the Priority

The other listed interventions are all appropriate components of holistic care for a patient with GBS, but they do not address the most immediate threat to life. The primary danger is not a contracture, a deep vein thrombosis, or pain, but rather the insidious onset of respiratory failure. The case reports underscore this reality. One case describes a patient managed in a stepdown unit with close respiratory monitoring, which was the specific intervention that prevented progression to respiratory failure and the need for intensive care unit (ICU) admission ^[2]. In a resource-limited setting without access to invasive ventilation, a structured framework was built around noninvasive respiratory support and intensive nursing care to manage respiratory failure successfully ^[1]. These examples demonstrate that vigilant, continuous assessment of respiratory function—including vital capacity, negative inspiratory force, and signs of hypoxia or hypercapnia—is the cornerstone of patient safety. The nurse must be prepared to escalate care and assist with mechanical ventilation the moment clinical indicators show the patient can no longer protect their own airway or ventilate adequately.

Integrating the Evidence into Practice

For the NCLEX-RN examinee, this question highlights the critical distinction between a routine intervention and a life-saving priority. While performing passive range of motion exercises, monitoring for deep vein thrombosis, and managing pain are all within the nurse's scope for a patient with immobility and neuropathic discomfort, they are secondary to ensuring the patient is breathing. The evidence confirms that even in a case where a patient did not ultimately require ICU admission, the decision to provide close respiratory monitoring was the key safety net ^[2]. The nurse’s clinical judgment must focus on the predictable trajectory of ascending paralysis: what begins as leg weakness can rapidly become diaphragmatic weakness. A systematic assessment of respiratory rate, depth, breath sounds, and the patient’s ability to cough and clear secretions provides the data necessary to prevent respiratory arrest, which is the most catastrophic outcome of GBS.