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Presentation comparison
UrgentCovers trauma responses, dissociation, somatic symptoms, and functional neurological symptoms.
3 of 7 diagnoses compared
| CriteriaComparison detail | PTSDUrgent |
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Trauma-linked clusters dominate and often worsen with reminders.
Clinical reference — not validated decision support. Review before use.
| Borderline stress-dissociationUrgent |
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| Complex PTSDUrgentNot selected |
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| Somatic symptom disorderUrgentNot selected |
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| Functional neurological disorderUrgentNot selected |
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| Acute stress reactionUrgentNot selected |
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| Why it fits | Intrusions, nightmares, flashbacks, avoidance, hypervigilance, startle, emotional numbing after trauma | Depersonalisation, derealisation, lost time, identity shifts, amnesia beyond ordinary forgetting | Transient dissociation during intense interpersonal conflict, abandonment threat, overwhelming emotion | Trauma plus affect dysregulation, negative self-concept, relational disturbance | Distressing physical symptoms with disproportionate fear, checking, healthcare use | Motor, sensory, speech, gait, or seizure-like symptoms not fitting known neuroanatomy | Early response not yet meeting full PTSD criteria |
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| What argues against | Applies to the whole presentationReview locally. | ||||||
| Must-not-miss | Dissociation, self-harm, aggression, severe insomnia, substance misuse | High-risk blackouts, self-harm, child safety risk, severe functional impairment | Self-harm, impulsive acts, volatile aggression | Chronic suicidality, severe shame | |||
| Bedside question | Applies to the whole presentationTrauma-linked clusters dominate and often worsen with reminders. | ||||||
| Immediate action | Applies to the whole presentationStabilise and reassess. | ||||||
| Investigations | Applies to the whole presentationGuided by presentation. | ||||||
| Mimics / overlap | Applies to the whole presentationReview overlap locally. | ||||||
Scroll horizontally to review more candidate differentials. Clinical reference — not validated decision support. Review before use.
Review locally.
Trauma-linked clusters dominate and often worsen with reminders.
Stabilise and reassess.
Guided by presentation.
Review overlap locally.
Intrusions, nightmares, flashbacks, avoidance, hypervigilance, startle, emotional numbing after trauma
Dissociation, self-harm, aggression, severe insomnia, substance misuse
Depersonalisation, derealisation, lost time, identity shifts, amnesia beyond ordinary forgetting
High-risk blackouts, self-harm,
Transient dissociation during intense interpersonal conflict, abandonment threat, overwhelming emotion
Self-harm, impulsive acts
Safety first. Act early.
Create a concise comparison summary for documentation or handoff.
Source pending review
v10 | Local content only
Last updated: Pending review
Open a selected differential to review its clinical record.
Based on current selection
Safety first. Act early.
Create a concise comparison summary for documentation or handoff.
Source pending review
v10 | Local content only
Last updated: Pending review
| Repeated procedures, opioid/benzo seeking, severe functional narrowing |
| Missed stroke, epilepsy, cord lesion, severe self-injury |
| Rapid deterioration, suicidality, severe dissociation |