Quick revision ↓ Medical Dictionary
Deep Learning — Module 13
Connect symptoms and examination findings to a differential, targeted investigations, initial priorities and reassessment.
Localization and time course
Begin with whether symptoms are sudden, episodic, progressive or fluctuating, then determine which functions are affected. Assess consciousness, cranial nerves, power, tone, reflexes, sensation, coordination and gait as appropriate. A pattern may suggest cortex, brainstem, spinal cord, peripheral nerve, neuromuscular junction or muscle. Upper and lower motor-neuron signs help localization but may be incomplete early. Localization and likely cause are separate steps in reasoning.
Stroke and transient symptoms
Sudden focal weakness, speech disturbance, visual loss or imbalance may indicate stroke. Establish onset or last-known-well time, check glucose and activate the urgent stroke pathway. Brain imaging distinguishes hemorrhage and other conditions and informs reperfusion decisions. Symptoms that resolve may still represent a TIA requiring prompt assessment. Do not give oral intake before an appropriate swallowing assessment in an acute stroke patient, and do not assume that all stroke presentations include obvious limb weakness.
Seizures and altered consciousness
A seizure history needs witness description, duration, recovery, triggers and injuries, while syncope and other events remain alternatives. Persistent or recurrent seizure activity without recovery is an emergency. Assess airway, breathing, glucose and reversible causes and follow the local treatment pathway. A first seizure does not automatically establish epilepsy. An EEG can support classification, but a normal interictal recording does not exclude epilepsy.
Headache and CNS infection
Abrupt maximal headache, meningism, new neurological deficit, papilledema or altered consciousness are warning features requiring urgent evaluation. Fever and headache may indicate meningitis or encephalitis even when every classic sign is absent. Lumbar puncture requires assessment of safety and indication; antibiotics or other time-critical treatment should not be dangerously delayed for a procedure or scan. Headache type should be diagnosed through positive features and assessment of secondary causes when indicated.
Weakness and cord emergencies
Progressive weakness may arise from neuropathy, neuromuscular-junction disease, myopathy or central pathology. Ascending weakness, bulbar symptoms or respiratory involvement requires urgent assessment even before oxygen saturation falls. New bladder dysfunction, saddle sensory change or progressive limb deficits with spinal symptoms raises concern for a compressive emergency. Document function and examination, seek timely imaging and specialist help, and avoid reassurance based solely on a prior diagnosis of back pain.
High-Yield Revision
- Time course and localization organize neurological reasoning.
- Record last-known-well time in suspected stroke.
- Bulbar or respiratory weakness can require urgent support.
Common Exam & Concept Pitfalls
- Do not exclude epilepsy because one EEG is normal.
- Do not dismiss resolved focal symptoms without assessing TIA.
Sources & Further Reading
Curriculum and reference review: 24 September 2026. These original notes teach clinical reasoning and recognition, not standalone prescribing or procedure protocols. International guidance supports the principles below; local pathways, resources and authorized supervision govern patient care. Faculty review is pending.
- PM&DC MBBS Curriculum 2024 — Medicine & Allied overview (printed page 20) and General Medicine section (from page 74)
- Acute assessment: Resuscitation Council UK: ABCDE · NICE adult sepsis recognition · Anaphylaxis guidance
- Cardiology: NICE acute coronary syndromes · Heart failure · Atrial fibrillation
- Respiratory: GINA 2026 asthma summary guide
- Gastrointestinal and renal care: NICE upper gastrointestinal bleeding · Acute kidney injury
- Endocrinology: 2024 multi-society hyperglycemic crises consensus · NICE thyroid disease
- Neurology: NICE stroke and TIA · Bacterial meningitis
- Allied care: NICE neutropenic sepsis · Rheumatoid arthritis · Self-harm assessment
- Continuity and safety: NICE delirium · Multimorbidity · WHO Medication Without Harm · WHO patient safety solutions
