An old man presents with 6 months of memory decline, falls, visual hallucinations, agitation, and confusion. Which of the following features is relevant to diagnosing his condition?
A. Parkinsonian features
B. Normal CSF markers for amyloid and tau.
C. Cerebellar signs
D. Significant early memory impairment.
E. Absence of motor symptoms.
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An 82-year-old woman with dementia and COPD presents with increased confusion and mild cough. Temperature 37.8°C, HR 95, RR 24, BP 110/70, SpO2 90% on air. Chest sounds are diminished bilaterally. What is the most appropriate initial investigation?
A. Serum procalcitonin
B. Bronchoscopy
C. High-resolution CT chest
D. Chest X-ray
E. Sputum Gram stain and culture
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