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Delirium: prevention, screening, and first 60-minute management

A Canadian clinical summary of delirium: prevention, screening, and first 60-minute management, with source-attributed priorities and explicit jurisdiction boundaries.

JurisdictionCanada
Source check2026-08-20
Clinical reviewiatroX editorial team · Clinical editorial review · reviewed 2026-08-20 · due 2027-08-20
AudienceHealthcare professionals practising in Canada
This is an iatroX educational summary of named Canada sources, not an official guideline. It does not replace the complete source documents, local policy, specialist advice or clinical judgement. Ontario is used as an explicit Canadian implementation example, not as a national rule. Verify the equivalent pathway, formulary and escalation route in the patient’s province or territory.

Ontario source: bounded use

Delirium: Care for Adults — Quality Standard supplies a Canadian implementation example for this summary. It must not be presented as the rule outside Ontario.
sources for this section:Ontario delirium standard

Source-attributed clinical priorities

  • Treat acute fluctuating inattention or altered awareness as delirium until an underlying cause is identified.
  • Search promptly for infection, medication toxicity or withdrawal, metabolic disturbance, pain, retention, constipation and environmental precipitants.
  • Use orientation, mobility, hydration, sensory aids and sleep measures; reserve medication for specific severe-risk situations.
  • Establish the person’s cognitive baseline and time course with family or caregivers whenever possible.
sources for this section:Ontario delirium standard

Practical assessment and management workflow

1
Confirm acute change and inattention and record arousal, fluctuation and focal neurologic findings.
2
Review oxygenation, glucose, infection, pain, urine and bowel function, medicines, withdrawal and recent procedures.
3
Treat identified causes while reducing tethers, supporting mobility, hydration, hearing, vision and familiar orientation.
4
Document resolution or persistence, reconcile medicines and communicate the episode and future vulnerability at discharge.
sources for this section:Ontario delirium standard

Safety, red flags and urgent escalation

  • Reduced consciousness, focal deficit, meningism, hypoxia, hypoglycemia or sepsis needs immediate medical escalation.
  • Do not use physical restraints or sedatives simply to make care easier.
  • If medication is unavoidable for immediate danger, use the lowest effective approach and reassess frequently.
sources for this section:Ontario delirium standard

Confirm the local pathway before acting

Ontario is used as an explicit Canadian implementation example, not as a national rule. Verify the equivalent pathway, formulary and escalation route in the patient’s province or territory.
sources for this section:Ontario delirium standard

Source and implementation boundary

Read this educational summary with the linked source, current Canadian product information where medicines are involved, and the applicable provincial or territorial pathway. Local formularies, reporting duties, referral routes and service availability can differ.
sources for this section:Ontario delirium standard

Source documents

Use the linked source documents for complete recommendations, evidence grading, exclusions and implementation detail.

  1. Ontario HealthDelirium: Care for Adults — Quality StandardPublished 2021-03-01 · accessed 2026-08-20
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