The first-line treatment of Guillain-Barré syndrome is

Correct Answer: B

Rationale: IVIG is first-line for Guillain-Barré, per AAN, hastening recovery by neutralizing antibodies. Physiotherapy supports; plasma exchange alternative; drugs and steroids less effective. IVIGs evidence base make B the correct answer.

Correct Answer: C

Rationale: Benign congenital hypotonia featurpoor manipulative skills , per pediatrics, with delayed fine motor due to low tone but eventual normalcy. Presentation is at birth (A wrong); sitting delayed; arm kicking possible; verbal skills intact. Motor lag makes C the correct answer.

Correct Answer: D

Rationale: Cerebral palsy is the most common cause of pediatric dystonia, per neurology, from perinatal brain injury affecting basal ganglia (~1-4/1,000). Tourette tics; electrolytacute; Wilson rare; tardive drug-related. CPs prevalence makes D the correct answer.

Correct Answer: B

Rationale: Epidural hemorrhage onset is minutto hours post-trauma, per neurosurgery, from arterial (e.g., middle meningeal) bleeding with lucid interval. Subdural slower; intraparenchymal variable; SAH instant; contusion immediate. Epidurals timing make B the correct answer.

Correct Answer: B

Rationale: Wilson disease is treatable, per hepatology, with cerebellar (ataxia) and basal ganglia (dystonia) signs from copper accumulation, reversible with chelation. Rett , adrenoleukodystrophy , mitochondrial , and NCL lack cure. Wilsons therapy make B the correct answer.