Overview
Clinical Orientation
Neurological practice begins with three questions: where is the dysfunction, how quickly did it develop, and what can still be reversed?
Neurological practice begins with three questions: where is the dysfunction, how quickly did it develop, and what can still be reversed? Sudden aphasia with hemiparesis, a first seizure, a new fall in consciousness, and six months of unilateral tremor are all neurological presentations, but they do not share the same clock or work-up. Localisation and tempo narrow the differential before a disease label is attached. The first assessment protects the brain while the cause is being defined: airway and ventilation, glucose, level of consciousness, focal deficits, pupils, fever or meningism, medication exposures—particularly anticoagulants—and last known well. Acute vascular injury may leave a salvageable penumbra around an irreversible core; trauma, haemorrhage, infection, or ongoing seizure can convert a diagnostic problem into secondary brain injury. That is why treatment may need to begin before diagnostic closure, as with empiric therapy for suspected bacterial meningitis. For Canadian NPs, time-critical decisions must align with local stroke, seizure, neurosurgical, and antimicrobial pathways because formulary access and transfer arrangements vary. The sections that follow connect anatomical meaning to targeted diagnostics, mechanism-based management, and monitoring. A useful...