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Leg ulcer infection (antimicrobial prescribing)

A Canadian clinical summary of leg ulcer infection (antimicrobial prescribing), 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. The evidence source is pan-Canadian, but formularies, funded access, referral routes, public-health directions and service availability remain provincial or territorial.

Source and scope

This national Wounds Canada source covers venous leg-ulcer assessment and management, including distinguishing colonization from clinical infection. Arterial, diabetic, pressure and other non-venous ulcers require their own pathway.
sources for this section:Wounds Canada VLU 2025

Source-attributed clinical priorities

  • Do not equate bacterial colonization with clinical infection; assess spreading erythema, warmth, pain, swelling and systemic illness.
  • Address venous or arterial disease, edema, pressure and wound care rather than using antibiotics to heal an uninfected ulcer.
  • Culture after cleaning when infection is worsening or not responding, and escalate ischemia, deep infection or sepsis.
  • Colonization is expected in chronic ulcers; antibiotics require clinical evidence of spreading or systemic infection.
sources for this section:Wounds Canada VLU 2025

Practical assessment and management workflow

1
Assess arterial and venous supply, edema, neuropathy, size, depth, pain and surrounding skin.
2
Identify increasing erythema, warmth, swelling, purulence or systemic illness rather than swab result alone.
3
Obtain a properly cleaned specimen only when microbiology will guide treatment.
4
Treat the underlying ulcer mechanism and review response promptly after any antibiotic course.
sources for this section:Wounds Canada VLU 2025

Safety, red flags and urgent escalation

  • Escalate sepsis, rapidly spreading cellulitis, crepitus, exposed bone or acute ischemia.
  • Do not apply compression until arterial sufficiency has been assessed.
  • Investigate disproportionate pain, undermining or nonhealing for vasculitis, malignancy or deep infection.
sources for this section:Wounds Canada VLU 2025

Confirm the local pathway before acting

The evidence source is pan-Canadian, but formularies, funded access, referral routes, public-health directions and service availability remain provincial or territorial.
sources for this section:Wounds Canada VLU 2025

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:Wounds Canada VLU 2025

Source documents

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

  1. Wounds CanadaBest Practice Recommendations for the Prevention and Management of Venous Leg Ulcers2025; DOI 10.56885/LORP2958 路 accessed 2026-08-20
    view source
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