The MOST common cause of static neurologic abnormalitiwhich are observed early in life is

Correct Answer: A

Rationale: Cerebral palsy is the most common cause of static neurologic abnormalitiin early life, per CDC, affecting ~1-4 per 1,000 births. It results from prenatal/perinatal brain injury (e.g., hypoxia), causing non-progressive motor deficits like spasticity or ataxia. Demyelinating and autoimmune diseas(e.g., MS) are progressive or relapsing, rare in infancy. Vascular diseasand stroke cause acute, not static, deficits. CPs early onset, stability, and prevalence rooted in fixed lesions make A the correct answer, distinct from evolving pathologies.

Correct Answer: A

Rationale: Broca aphasia is anterior, expressive, non-fluent speech from left frontal lobe damage, per neurology texts. Wernicke is fluent, posterior, comprehension-deficient. Global combinboth. Alexia and agraphia are reading/writing deficits. Brocas localization makes A the correct answer.

Correct Answer: B

Rationale: Gowers sign reflects proximal weakness, per neuromuscular texts, seen in Duchenne dystrophy, where boys climb up legs due to hip/thigh weakness. Denervation causatrophy; corticospinal spasticity; cerebellar ataxia. Proximal pattern make B the correct answer.

Correct Answer: C

Rationale: Bloody CSF indicatvenous thrombosis , per neurology texts, from hemorrhage into CSF spaces. MS and leukodystrophy lack blood; hypertension is systemic; herpmay have RBCs but not predominantly. Thrombosiss vascular rupture makes C the correct answer.

Correct Answer: B

Rationale: Migraine headache fits bitemporal, severe, pounding pain lasting 1-72 hours, worsened by activity, per ICHD-3. Tension is band-like, mild; secondary needs underlying cause (e.g., tumor, D); sinusitis is facial. Migrainthrobbing stereotype make B the correct answer.