Which of the following statements regarding Guillain-Barre syndrome are accurate? Select all that apply.

Choice A rationale This is accurate as it is an acute inflammatory demyelinating polyneuropathy. The immune system mistakenly attacks the myelin sheath of the peripheral nerves, which slows or blocks the conduction of nerve impulses. This autoimmune response is often triggered by a preceding infection. The destruction of myelin leads to varying degrees of muscle weakness and sensory loss. Early recognition is vital for initiating treatments like plasmapheresis or intravenous immunoglobulin therapy to limit nerve damage. Choice B rationale This is accurate because many cases are preceded by a gastrointestinal infection, most notably by the bacterium Campylobacter jejuni. Respiratory infections are also common triggers. The theory of molecular mimicry suggests that the immune system produces antibodies against the infecting pathogen that cross-react with similar antigens on the peripheral nerve myelin. This link between a recent illness and the onset of neurological symptoms is a key diagnostic feature used during the patient's history taking. Choice C rationale This is inaccurate because Reye's syndrome is a completely different condition characterized by acute encephalopathy and fatty infiltration of the liver, typically following a viral illness in children who took aspirin. Miller Fisher syndrome, not Reye's syndrome, is the well-known variant of this condition, characterized by the triad of ataxia, areflexia, and ophthalmoplegia. Confusing these two syndromes could lead to incorrect diagnostic paths and inappropriate management strategies for the affected patient. Choice D rationale This is accurate and represents the most serious complication of the syndrome. As the ascending paralysis progresses, it can reach the intercostal muscles and the diaphragm. This leads to acute respiratory failure, necessitating frequent monitoring of forced vital capacity and negative inspiratory force. Up to thirty percent of patients may require mechanical ventilation during the peak of the illness. Prompt transfer to an intensive care unit is required if respiratory involvement is suspected. Choice E rationale This is inaccurate as the condition slightly favors males more than females, and it can affect individuals of any age. Unlike many other autoimmune diseases that have a strong female predominance, this syndrome does not show that pattern. Epidemiological studies consistently show a slightly higher incidence in men. Understanding the demographic distribution helps clinicians maintain a high index of suspicion in any patient presenting with rapid, symmetrical, ascending motor weakness regardless of their gender. Choice F rationale This is accurate as the classic presentation involves symmetrical weakness and paresthesia that begins in the feet and legs and moves toward the trunk and upper body. This is often referred to as ascending paralysis. The loss of deep tendon reflexes, such as the Achilles and patellar reflexes, usually accompanies the muscle weakness. This characteristic pattern of progression is a hallmark of the disease and helps distinguish it from other neurological disorders that might present more randomly. .