Why Neurology History Taking Is High-Stakes
Neurology stations are feared by medical students because the clinical presentations are diverse and the differentials complex. However, the history framework is actually highly structured, and once you've mastered it, neurology becomes one of your most reliable OSCE stations.
The key is localisation: which part of the nervous system is affected? Your history questions should be directed at answering this anatomical question.
The Core Neurological Framework
For any neurological presentation, work through:
- 1SOCRATES for the primary symptom
- 2Neurological screen (functional impact + associated neurological symptoms)
- 3Red flag screen
- 4Systematic review (PMH, DHx, FHx, SHx)
Headache, The High-Risk Station
Headache is the most common neurology OSCE station and the highest-stakes because of the red flags.
SOCRATES for Headache
| Feature | Key question | Red flag significance |
|---|---|---|
| Site | "Where is it, one side, both sides, back of head?" | Occipital + stiff neck = meningitis/SAH |
| Onset | "Did it come on instantly, build over minutes, or hours?" | Thunderclap = SAH until proven otherwise |
| Character | "Throbbing, pressure, tight band, stabbing?" | |
| Radiation | "Does it go anywhere?" | |
| Associated | "Any visual changes, nausea/vomiting, neck stiffness, fever, aura?" | |
| Timing | "How long does each headache last?" | |
| Exacerbating | "Worse with coughing, straining, bending forward, bright light, noise?" | Worse with Valsalva = raised ICP |
| Severity | 0–10, and "How does this compare to any previous headaches?" |
⚠️ Red Flag
Thunderclap headache = SAH until proven otherwise
"Did the headache come on very suddenly, like being hit over the head?"
A 10/10 headache that reaches maximum intensity within seconds is a subarachnoid haemorrhage until a CT and LP say otherwise. This is the highest-stakes neurological emergency in your OSCE repertoire.
Headache Red Flags (SNOOP)
🧠 Mnemonic
SNOOP, headache red flags:
- Systemic symptoms (fever, weight loss, night sweats)
- Neurological deficit (confusion, focal weakness, speech problems)
- Onset sudden (thunderclap)
- Older age (new headache > 50 = temporal arteritis, malignancy)
- Previous headache different in character (raised ICP until excluded)
Any SNOOP feature = urgent investigation.
Differentiating Headache Types
| Type | Character | Duration | Associated features | Triggers |
|---|---|---|---|---|
| ------ | ----------- | ---------- | -------------------- | ---------: |
| Migraine | Unilateral, throbbing | 4–72 hours | Aura, nausea, photophobia, phonophobia | Menstruation, stress, foods |
| Tension-type | Bilateral, pressing/tight | 30 min–7 days | No nausea, no aura | Stress, posture |
| Cluster | Unilateral periorbital, excruciating | 15–180 min | Ipsilateral lacrimation, rhinorrhoea, agitation | Alcohol, circadian |
| SAH | Thunderclap, worst ever | Days | Neck stiffness, vomiting, photophobia | |
| Meningitis | Progressive, severe | Hours–days | Fever, rash, neck stiffness | |
| Raised ICP | Morning, worse on coughing | Recurrent | Papilloedema, vomiting without nausea |
Weakness, Localising the Lesion
When a patient presents with weakness, your history should answer: Upper or lower motor neurone? Which territory?
SOCRATES Plus Specific Questions
- "Which parts of your body feel weak?"
- "Did it come on suddenly or gradually?" (sudden = vascular; gradual = demyelinating/tumour)
- "Is it affecting one side or both?"
- "Upper body, lower body, or one limb?"
- "Any problems walking or climbing stairs?"
Associated Symptoms, Ask Systematically
- Sensory symptoms: "Any numbness, tingling, or pins and needles alongside the weakness?"
- Speech: "Any difficulty speaking or finding words?"
- Vision: "Any double vision, blurred vision, or visual loss?"
- Bladder/bowel: "Any problems passing urine or opening your bowels?" (spinal cord involvement)
- Dysphagia: "Any difficulty swallowing?"
- Diurnal variation: "Is the weakness worse at the end of the day?" (myasthenia gravis)
💎 Clinical Pearl
UMN vs LMN clinical clues from the history:
- UMN (cortex/spinal cord): spasticity, increased tone, hyperreflexia, upgoing plantars, minimal wasting
- LMN (anterior horn/peripheral nerve): flaccidity, reduced tone, fasciculations, wasting, depressed reflexes
In the history, UMN lesions tend to produce pyramidal weakness (flexor loss in arm, extensor loss in leg), while LMN lesions produce weakness in a nerve or root distribution.
Seizures, Essential Questions
A seizure history requires four phases:
Pre-Ictal
- "Did you have any warning before it happened, a feeling, smell, visual change, or déjà vu?" (aura = focal onset)
- "Were you fully conscious in the minutes before?"
- "Had you been drinking alcohol or taken any new medications?"
Ictal (from witness account)
- "Did anyone see it happen? What did they describe?"
- "Did your whole body shake, or just one part?"
- "Did you fall? Did your eyes deviate?"
- "Were you conscious during it or did you lose awareness?"
- "How long did it last?"
Post-Ictal
- "How did you feel afterwards? Any confusion, headache, or weakness in one limb?" (Todd's paresis = focal onset)
- "Any tongue biting or urinary incontinence during?"
- "How long before you felt completely back to normal?"
Between Episodes
- "Have you had any previous episodes like this?"
- "Any history of childhood febrile convulsions?"
- "Any recent head injury or illness?"
- "Any family history of epilepsy?"
- Drug history: "Are you on any medications? Do you use recreational drugs or alcohol?"
⚠️ Red Flag
Driving and safety: If a patient discloses a new seizure, you have a professional and legal obligation to advise them not to drive and to notify the DVLA. This is a safety and professionalism mark in the OSCE.
"I have to advise you that following a first seizure, you are legally required to stop driving and notify the DVLA. I know that may be difficult to hear, I want to make sure you have all the support you need."
Dizziness, Vertigo vs Presyncope
Dizziness is one of the most challenging histories because patients use the same word to mean very different things. Clarify first:
"When you say dizzy, can you describe what you mean? Is it a spinning sensation, or more like you might faint or black out?"
| Type | Sensation | Key differentials |
|---|---|---|
| Vertigo (spinning) | Environment or self rotates | BPPV, labyrinthitis, vestibular neuritis, posterior stroke |
| Presyncope (faint) | Lightheaded, greying out | Vasovagal, orthostatic hypotension, cardiac |
| Disequilibrium (unsteadiness) | Feels off-balance when walking | Cerebellar, Parkinson's, peripheral neuropathy |
For vertigo:
- "Does it last seconds, minutes, or hours?" (BPPV = seconds; Ménière's = hours; vestibular neuritis = days)
- "Is it brought on by head movement?" (BPPV = yes)
- "Any hearing loss or tinnitus?" (Ménière's disease)
- "Any headache or neurological symptoms?" (posterior fossa stroke)
Systematic Review for Neurology
Always close with:
- Past neurological history (previous strokes, MS, epilepsy, migraines)
- Drug history, especially anticoagulants, antiepileptics, immunosuppressants
- Family history, MS, migraines, hereditary neuropathies, Huntington's
- Social history, smoking (stroke risk), alcohol (Wernicke's, peripheral neuropathy), occupation
💎 Clinical Pearl
In any patient with possible stroke symptoms, use the FAST acronym to screen, but also ask about lesser-known symptoms: sudden severe headache, visual loss (amaurosis fugax), vertigo, diplopia, ataxia, and confusion. Posterior circulation strokes are frequently missed.