Minimum inhibitory concentration (MIC)

  • The MIC is the lowest concentration of  antimicrobial  that prevents visible growth (inhibits bacterial growth)  in body tissues and fluids that. (measured visually)

  • Organism and antimicrobial specific

Report organism(s) and susceptibilities to antimicrobials

  • Susceptible (S)
  • Intermediate (I)
  • Resistant (R)

N.B : Drug must inhibit microorganism at lower concentrations than those that produce toxic effects in humans

  • MBC = minimum bactericidal concentration  lowest concentration of antibiotic that kills bacteria.