What is the correct next step in managing a patient with Guillain-Barré syndrome?

In the management of Guillain-Barré syndrome (GBS), assessing pulmonary function is a crucial initial step, particularly because respiratory failure can occur due to weakness of the respiratory muscles. This evaluation helps determine the extent of respiratory involvement and guides further management. If the patient exhibits significant impairment in respiratory function, they may require more intensive monitoring and potential intervention, such as respiratory support.

However, while initial assessments are critical, the most definitive treatments for GBS include intravenous immunoglobulin (IVIG) or plasmapheresis, which can reduce the duration and severity of the illness. After assessing pulmonary function, if the patient shows signs of respiratory compromise or worsening strength, these treatments become essential to prevent complications.

In summary, assessing pulmonary function allows the healthcare provider to gauge the severity of the condition early on, which is vital for appropriate management and timely intervention.