See also, Vancomycin & Haemophilus influenzae
Results are reported as minimum inhibitory concentrations (MICs), the minimum amount of drug needed to inhibit growth in vitro. Interpretive criteria are based on achievable serum levels. For certain antibiotics, the amount excreted into the urine via the kidneys is above the MIC, and the agent is effective clinically in this site even though reported as "resistant". Intermediate results (I), especially for beta-lactam agents, indicate that doses higher than standard recommendations may be effective. In other cases, "I" results indicate that the organism may be susceptible or resistant but the in vitro tests are not sensitive enough to determine specifically. For this antibiogram, Intermediate results are NOT included within the "%S" category.