NeurologicClinical presentation

Tremor / movement disorder

A streamlined, differential-led presentation for rapid clinical review.

Clinical snapshot

Twenty-second review

Tremor and abnormal movement may arise from essential or Parkinsonian disease, medication effects, withdrawal, metabolic disturbance, or acute neurologic injury.
New focal deficit, rigidity with hyperthermia, severe autonomic instability, seizure, inability to walk, or rapidly progressive symptoms is high risk.
Keep anxiety, hypoglycemia, or alcohol withdrawal in the differential; overlapping or concurrent illness remains possible.
For tremor / movement disorder, trends and combinations of findings are more informative than one isolated vital sign.

Differentials

Compare the clinical patterns

The repeated material is grouped inside each possibility. Open only the condition you need.

Serious3 conditions

StrokeTime-sensitive high-risk possibility

HPI

Clarify new or baseline; focal or generalized; medication timing or recent change.

Signs & symptoms

Focal signs, hyperthermia, rigidity, clonus, or autonomic instability.

Focused exam

Record GCS components, pupils, speech, gaze, motor symmetry, sensation, coordination, and gait when safe; Compare findings with baseline and collateral history.

Brief pathophysiology

Stroke may cause tremor / movement disorder through a time-sensitive process capable of rapid physiological deterioration.

Vital-sign pattern

What the trend may show

Possible pattern

Stroke is a clinical diagnosis supported by time course and neurologic findings. Blood pressure and glucose affect eligibility and mimics; normal vitals do not exclude stroke.

Blood pressure (mmHg)

Often elevated

Hypertension is common in acute stroke; hypotension suggests another cause or poor perfusion.

Blood glucose (mmol/L)

Check every patient

Hypoglycemia can mimic focal deficit; hyperglycemia may accompany stress or diabetes.

Heart rate (bpm)

Assess rate / rhythm

An irregular rhythm may suggest atrial fibrillation but is not required.

Oxygen saturation (SpO₂)

Usually preserved

Hypoxemia requires correction and may indicate aspiration or another process.

Front-load in the triage report

Stroke: Focal signs, hyperthermia, rigidity, clonus, or autonomic instability.
New or baseline?
Focal or generalized?

SerotoninTime-sensitive high-risk possibility

HPI

Clarify focal or generalized; medication timing or recent change; weakness, speech or gait change.

Signs & symptoms

Focal signs, hyperthermia, rigidity, clonus, or autonomic instability.

Focused exam

Compare findings with baseline and collateral history; Characterize rest versus action tremor, rigidity, bradykinesia, coordination, gait, strength, medication timing, and withdrawal signs.

Brief pathophysiology

Serotonin may cause tremor / movement disorder through a time-sensitive process capable of rapid physiological deterioration.

Vital-sign pattern

What the trend may show

Possible pattern

Neurologic differentials often have nonspecific vital signs. Glucose, pressure, oxygenation, and cardiac rate/rhythm help identify mimics and prevent secondary injury.

Blood glucose (mmol/L)

Check early

Hypoglycemia can mimic or worsen neurologic dysfunction.

Blood pressure (mmHg)

Trend pressure

Both hypo- and hypertension can be clinically important in neurologic disease.

Oxygen saturation (SpO₂)

Prevent hypoxemia

Low saturation can worsen brain injury or suggest an alternate cause.

Heart rate (bpm)

Assess rate / rhythm

Rhythm disturbance can cause cerebral hypoperfusion or embolic events.

Front-load in the triage report

Serotonin: Focal signs, hyperthermia, rigidity, clonus, or autonomic instability.
Focal or generalized?
Medication timing or recent change?

Neuroleptic malignant syndromeTime-sensitive high-risk possibility

HPI

Clarify medication timing or recent change; weakness, speech or gait change; bgl and temperature.

Signs & symptoms

Focal signs, hyperthermia, rigidity, clonus, or autonomic instability.

Focused exam

Compare findings with baseline and collateral history; Characterize rest versus action tremor, rigidity, bradykinesia, coordination, gait, strength, medication timing, and withdrawal signs.

Brief pathophysiology

Neuroleptic malignant syndrome may cause tremor / movement disorder through a time-sensitive process capable of rapid physiological deterioration.

Vital-sign pattern

What the trend may show

Possible pattern

Autonomic excess can produce tachycardia, hypertension, hyperthermia, and tachypnea. Marked temperature elevation or deterioration is a time-critical finding.

Heart rate (bpm)

Often elevated

Tachycardia is common with sympathetic activation.

Blood pressure (mmHg)

Often elevated

Hypertension is common, though collapse or mixed toxicity can lower pressure.

Temperature (°C)

May rise dangerously

Hyperthermia signals severe toxicity and requires urgent management.

Respiratory rate (breaths/min)

Often elevated

Tachypnea may reflect agitation, hyperthermia, or metabolic acidosis.

Front-load in the triage report

Neuroleptic malignant syndrome: Focal signs, hyperthermia, rigidity, clonus, or autonomic instability.
Medication timing or recent change?
Weakness, speech or gait change?

Common3 conditions

EssentialCommon presentation pattern

HPI

Clarify new or baseline; focal or generalized; medication timing or recent change.

Signs & symptoms

Pattern, chronicity, and dose timing may support the cause.

Focused exam

Record GCS components, pupils, speech, gaze, motor symmetry, sensation, coordination, and gait when safe; Compare findings with baseline and collateral history.

Brief pathophysiology

Essential may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.

Vital-sign pattern

What the trend may show

Possible pattern

Neurologic differentials often have nonspecific vital signs. Glucose, pressure, oxygenation, and cardiac rate/rhythm help identify mimics and prevent secondary injury.

Blood glucose (mmol/L)

Check early

Hypoglycemia can mimic or worsen neurologic dysfunction.

Blood pressure (mmHg)

Trend pressure

Both hypo- and hypertension can be clinically important in neurologic disease.

Oxygen saturation (SpO₂)

Prevent hypoxemia

Low saturation can worsen brain injury or suggest an alternate cause.

Heart rate (bpm)

Assess rate / rhythm

Rhythm disturbance can cause cerebral hypoperfusion or embolic events.

Front-load in the triage report

Pattern, chronicity, and dose timing may support the cause.
New or baseline?
Focal or generalized?

ParkinsonianCommon presentation pattern

HPI

Clarify focal or generalized; medication timing or recent change; weakness, speech or gait change.

Signs & symptoms

Pattern, chronicity, and dose timing may support the cause.

Focused exam

Compare findings with baseline and collateral history; Characterize rest versus action tremor, rigidity, bradykinesia, coordination, gait, strength, medication timing, and withdrawal signs.

Brief pathophysiology

Parkinsonian may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.

Vital-sign pattern

What the trend may show

Possible pattern

Neurologic differentials often have nonspecific vital signs. Glucose, pressure, oxygenation, and cardiac rate/rhythm help identify mimics and prevent secondary injury.

Blood glucose (mmol/L)

Check early

Hypoglycemia can mimic or worsen neurologic dysfunction.

Blood pressure (mmHg)

Trend pressure

Both hypo- and hypertension can be clinically important in neurologic disease.

Oxygen saturation (SpO₂)

Prevent hypoxemia

Low saturation can worsen brain injury or suggest an alternate cause.

Heart rate (bpm)

Assess rate / rhythm

Rhythm disturbance can cause cerebral hypoperfusion or embolic events.

Front-load in the triage report

Pattern, chronicity, and dose timing may support the cause.
Focal or generalized?
Medication timing or recent change?

Medication-related movementCommon presentation pattern

HPI

Clarify medication timing or recent change; weakness, speech or gait change; bgl and temperature.

Signs & symptoms

Pattern, chronicity, and dose timing may support the cause.

Focused exam

Compare findings with baseline and collateral history; Characterize rest versus action tremor, rigidity, bradykinesia, coordination, gait, strength, medication timing, and withdrawal signs.

Brief pathophysiology

Medication-related movement may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.

Vital-sign pattern

What the trend may show

Possible pattern

Neurologic differentials often have nonspecific vital signs. Glucose, pressure, oxygenation, and cardiac rate/rhythm help identify mimics and prevent secondary injury.

Blood glucose (mmol/L)

Check early

Hypoglycemia can mimic or worsen neurologic dysfunction.

Blood pressure (mmHg)

Trend pressure

Both hypo- and hypertension can be clinically important in neurologic disease.

Oxygen saturation (SpO₂)

Prevent hypoxemia

Low saturation can worsen brain injury or suggest an alternate cause.

Heart rate (bpm)

Assess rate / rhythm

Rhythm disturbance can cause cerebral hypoperfusion or embolic events.

Front-load in the triage report

Pattern, chronicity, and dose timing may support the cause.
Medication timing or recent change?
Weakness, speech or gait change?

Mimics3 conditions

AnxietyImportant alternative presentation

HPI

Clarify new or baseline; focal or generalized; medication timing or recent change.

Signs & symptoms

Physiologic tremor may reflect systemic stress.

Focused exam

Record GCS components, pupils, speech, gaze, motor symmetry, sensation, coordination, and gait when safe; Compare findings with baseline and collateral history.

Brief pathophysiology

Anxiety can resemble tremor / movement disorder through overlapping symptoms or referred physiology despite a different primary mechanism.

Vital-sign pattern

What the trend may show

Possible pattern

Neurologic differentials often have nonspecific vital signs. Glucose, pressure, oxygenation, and cardiac rate/rhythm help identify mimics and prevent secondary injury.

Blood glucose (mmol/L)

Check early

Hypoglycemia can mimic or worsen neurologic dysfunction.

Blood pressure (mmHg)

Trend pressure

Both hypo- and hypertension can be clinically important in neurologic disease.

Oxygen saturation (SpO₂)

Prevent hypoxemia

Low saturation can worsen brain injury or suggest an alternate cause.

Heart rate (bpm)

Assess rate / rhythm

Rhythm disturbance can cause cerebral hypoperfusion or embolic events.

Front-load in the triage report

Physiologic tremor may reflect systemic stress.
New or baseline?
Focal or generalized?

HypoglycemiaImportant alternative presentation

HPI

Clarify focal or generalized; medication timing or recent change; weakness, speech or gait change.

Signs & symptoms

Physiologic tremor may reflect systemic stress.

Focused exam

Compare findings with baseline and collateral history; Characterize rest versus action tremor, rigidity, bradykinesia, coordination, gait, strength, medication timing, and withdrawal signs.

Brief pathophysiology

Hypoglycemia can resemble tremor / movement disorder through overlapping symptoms or referred physiology despite a different primary mechanism.

Vital-sign pattern

What the trend may show

Possible pattern

Confirm low capillary glucose and reassess after treatment. Adrenergic signs may be absent in recurrent hypoglycemia or blunted by medications.

Blood glucose (mmol/L)

< 4.0 mmol/L

BCEHS defines hypoglycemia as blood glucose below 4.0 mmol/L.

Heart rate (bpm)

May rise

Adrenergic activation commonly produces tachycardia, but this is not universal.

Blood pressure (mmHg)

Often preserved

Blood pressure is not a reliable discriminator; hypotension suggests another or additional process.

Temperature (°C)

May fall

Hypothermia can accompany prolonged or severe hypoglycemia.

Front-load in the triage report

Physiologic tremor may reflect systemic stress.
Focal or generalized?
Medication timing or recent change?

Alcohol withdrawalImportant alternative presentation

HPI

Clarify medication timing or recent change; weakness, speech or gait change; bgl and temperature.

Signs & symptoms

Physiologic tremor may reflect systemic stress.

Focused exam

Compare findings with baseline and collateral history; Characterize rest versus action tremor, rigidity, bradykinesia, coordination, gait, strength, medication timing, and withdrawal signs.

Brief pathophysiology

Alcohol withdrawal can resemble tremor / movement disorder through overlapping symptoms or referred physiology despite a different primary mechanism.

Vital-sign pattern

What the trend may show

Possible pattern

Withdrawal commonly causes autonomic hyperactivity. Fever, hypoxemia, hypotension, or marked altered mentation should not be attributed automatically to withdrawal.

Heart rate (bpm)

Often elevated

Tachycardia is common with autonomic activation.

Blood pressure (mmHg)

May rise

Hypertension may occur; hypotension suggests dehydration or another illness.

Temperature (°C)

May rise

Temperature can rise in severe withdrawal; infection must also be considered.

Respiratory rate (breaths/min)

May rise

Tachypnea can reflect agitation or metabolic stress.

Front-load in the triage report

Physiologic tremor may reflect systemic stress.
Medication timing or recent change?
Weakness, speech or gait change?

Red flags

Findings that should escalate concern

New focal deficit, rigidity with hyperthermia, severe autonomic instability, seizure, inability to walk, or rapidly progressive symptoms is high risk.
Stroke, serotonin or neuroleptic malignant syndrome: Focal signs, hyperthermia, rigidity, clonus, or autonomic instability.

Continue the clinical pathway

References

Clinical and academic sources

Curated clinical guidance and peer-reviewed evidence supporting this presentation. Current BCEHS guidance, medical direction, and local policy remain authoritative for practice.

BCEHS Handbook — specific CPGs

F01: Altered Levels of ConsciousnessBC Emergency Health Services Handbook
Official BCEHS clinical practice guidance for altered levels of consciousness.