Dementia with Lewy bodies

Visual hallucinations, fluctuation, parkinsonism, dream enactment, antipsychotic sensitivity

UrgentReview due

Compare (7)

At a glance

High-risk causes: 4
Immediate actions: 4
Related differentials: 6

Safety snapshot

Watch forSevere antipsychotic sensitivityfallsautonomic instabilityNMS

Presentation hinge

Inattention and fluctuating awareness are the key separators; psychotic content is often fragmentary.

Separates the Older-Adult First-Presentation Psychosis Traps group. It is not specific to Dementia with Lewy bodies.

Points for this presentation

Applies to the Older-Adult First-Presentation Psychosis Traps group — not specific to Dementia with Lewy bodies

Acute change in an older person is delirium until proved otherwise
Lewy body disease is a classic trap in late-life psychiatry
The medication list is one of the highest-yield late-life investigations
Even modest recent changes or cumulative burden can precipitate delirium

Clinical review

Rows marked “Whole group”: Applies to the Older-Adult First-Presentation Psychosis Traps group — not specific to Dementia with Lewy bodies

Why it fits

Visual hallucinations, fluctuation, parkinsonism, dream enactment, antipsychotic sensitivity

Key features

Must-not-miss

Severe antipsychotic sensitivity, falls, autonomic instability, NMS.

High-risk causes4 causes

Severe antipsychotic sensitivity
falls
autonomic instability
NMS

Bedside question

Applies to the Older-Adult First-Presentation Psychosis Traps group.

Inattention and fluctuating awareness are the key separators; psychotic content is often fragmentary.

Helpful clues

Immediate action

Applies to the Older-Adult First-Presentation Psychosis Traps group.

Acute change in an older person is delirium until proved otherwise Lewy body disease is a classic trap in late-life psychiatry The medication list is one of the highest-yield late-life investigations Even modest recent changes or cumulative burden can precipitate delirium

Priority steps4 steps

1Acute change in an older person is delirium until proved otherwise
2Lewy body disease is a classic trap in late-life psychiatry
3The medication list is one of the highest-yield late-life investigations
4Even modest recent changes or cumulative burden can precipitate delirium

Investigations

Applies to the Older-Adult First-Presentation Psychosis Traps group.

None listed

Core tests

Mimics / overlap

Applies to the Older-Adult First-Presentation Psychosis Traps group.

None listed

Consider

Clinical reference — not validated decision support. Review before use.