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MIC (mcg/ mL) Interpretation
. 8 Susceptible (S)
. 16 Resistant (R)
Staphylococcus a
MIC (mcg/ mL) Interpretation
. 0.25 Susceptible (S)
. 0.5 Resistant (R)
Streptococcus (except S. pneumoniae) MIC (mcg/ mL)
Interpretation
. 0.25 Susceptible (S)
0.5 to 4 Intermediate (I)
. 8 Resistant (R)
S. pneumoniae b from non-meningitis sources.
(Amoxicillin powder should be used to determine susceptibility.)
MIC (mcg/ mL) Interpretation
. 2.0 Susceptible (S)
4.0 Intermediate (I)
. 8.0 Resistant (R) Note: These interpretive criteria are based on the recommended doses for respiratory tract infections.
For gram-negative aerobes: Enterobacteriaceae MIC (mcg/ mL) Interpretation
. 8 Susceptible (S)
16 Intermediate (I)
. 32 Resistant (R)
H. influenzae c
MIC (mcg/ mL) Interpretation
. 1 Susceptible (S)
2 Intermediate (I)
. 4 Resistant (R) Text Continues Below
a. Staphylococci which are susceptible to amoxicillin but resistant to methicillin/ oxacillin should be considered as resistant to amoxicillin. b. These interpretive standards are applicable only to broth microdilution susceptibility tests using cation-adjusted Mueller-Hinton broth with 2-5% lysed horse blood. c. These interpretive standards are applicable only to broth microdilution test with H. influenzae using Haemophilus Test Medium (HTM). A report of "Susceptible" indicates that the pathogen is likely to be inhibited if the antimicrobial compound in the blood reaches the concentrations usually achievable. A report of "Intermediate" indicates that the result should be considered equivocal, and, if the microorganism is not fully susceptible to alternative, clinically feasible drugs, the test should be repeated. This category implies possible clinical applicability in body sites where the drug is physiologically concentrated or in situations where high dosage of drug can be used. This category also provides a buffer zone, which prevents small uncontrolled technical factors from causing major discrepancies in interpretation. Page: << Prev | 1 | 2 | 3 | 4 | 5 | Next >>
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