167.4 📌 章末速蚘

  • E. coli — ubiquitous; UTI #1, bacteremia, intra-abd, neonatal mening (K1)
  • 6 diarrheagenic pathotypes: ETEC (traveler), EPEC, EIEC, EAEC, STEC (HUS!), DAEC
  • STEC NO antibiotic; supportive + monitor HUS
  • ESBL: CTX-M plasmid; severe → carbapenem (MERINO)
  • AmpC inducible: cefepime / carbapenem (avoid 3rd ceph mono)
  • CRE: KPC → CAZ-AVI; NDM → cefiderocol; OXA-48 → CAZ-AVI
  • Klebsiella hypervirulent (Taiwan/Asia liver abscess + DM)
  • Proteus urease → struvite stones
  • Carbapenem-sparing in mild UTI: PO fosfomycin / nitrofurantoin