Spectrum: Local Antimicrobial Stewardship, for Markham Stouffville Hospital

Colorectal

Common Pathogens

Bacteroides fragilis

E. coli

Regimen of Choice

Cefazolin 2 g IV

Redosing interval

q4h

PLUS

Metronidazole 500 mg IV

Redosing interval

q8h

β-lactam Allergy

Gentamicin 5 mg/kg IV

Redosing Dose & Interval

2 mg/kg q6h

PLUS

Metronidazole 500 mg IV

Redosing interval

q8h

Post-op Antibiotics

None