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Anaphylaxis: assessment + referral after emergency treatment

A Canadian clinical summary of anaphylaxis: assessment + referral after emergency treatment, with source-attributed priorities and explicit jurisdiction boundaries.

JurisdictionCanada
Source check2026-08-20
Clinical reviewiatroX editorial team 路 Clinical editorial review 路 reviewed 2026-08-20 路 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. British Columbia is used as an explicit Canadian implementation example, not as a national rule. Verify the equivalent pathway, formulary and escalation route in the patient鈥檚 province or territory.

British Columbia source: bounded use

Anaphylaxis: Diagnosis and Treatment supplies a Canadian implementation example for this summary. It must not be presented as the rule outside British Columbia.
sources for this section:ECBC anaphylaxis

Source-attributed clinical priorities

  • Recognize anaphylaxis clinically when acute airway, breathing or circulation compromise or multisystem features follow a likely trigger.
  • Give intramuscular epinephrine promptly and repeat according to response while positioning, oxygen, fluids and airway support are arranged.
  • Observe according to severity and risk, prescribe and teach an autoinjector when indicated, and arrange trigger and allergy follow-up.
  • Intramuscular epinephrine is first-line; antihistamines do not treat airway obstruction or shock.
sources for this section:ECBC anaphylaxis

Practical assessment and management workflow

1
Recognize rapid airway, breathing or circulation compromise or multisystem allergic symptoms after exposure.
2
Give epinephrine into the lateral thigh and repeat according to response while calling emergency support.
3
Position safely, provide oxygen and fluid resuscitation and monitor for recurrence.
4
Before discharge, prescribe and teach an autoinjector when indicated and arrange allergy referral and an action plan.
sources for this section:ECBC anaphylaxis

Safety, red flags and urgent escalation

  • Do not delay epinephrine for IV access, antihistamine or corticosteroid.
  • Refractory shock or airway edema requires advanced resuscitation and critical-care expertise.
  • Avoid suddenly standing or walking a hypotensive patient because cardiovascular collapse can worsen.
sources for this section:ECBC anaphylaxis

Confirm the local pathway before acting

British Columbia is used as an explicit Canadian implementation example, not as a national rule. Verify the equivalent pathway, formulary and escalation route in the patient鈥檚 province or territory.
sources for this section:ECBC anaphylaxis

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:ECBC anaphylaxis

Source documents

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

  1. Emergency Care BCAnaphylaxis: Diagnosis and Treatmentaccessed 2026-08-20
    view source
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