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This brochure is intended to provide succinct answers to common questions about the performance of in vitro antimicrobial susceptibility testing of bacteria and fungi and the value of the results in guiding antimicrobial therapy.
Due to the mechanism of B-lactam resistance with Enterococcus, susceptibility of ampicillin infers susceptibility of broader-spectrum penicillins (such as piperacillin). All B-lactam susceptibility of B-hemolytic Streptococcus (groups A, B, C, G) is inferred from penicillin.
Thermo ScientificTM Oxoid™ Antimicrobial Susceptibility Test Discs are used in the semi-quantitative agar diffusion test method for in vitro susceptibility testing.
Thermo Scientific™ Oxoid™ Ampicillin Antimicrobial Susceptibility Test (AST) Discs are 6mm discs prepared by impregnating high quality absorbent paper with specified concentrations of ampicillin.
Zone diameters of antimicrobial agents ... Antimicrobial agent Disc content When testing Susceptible Intermediately susceptible Resistant Acinetobacter spp ≥17 15-16 ≤14 Enterobacteriaceae ≥17 15-16 ≤14 Pseudomonas aeruginosa ≥17 15-16 ≤14 Amikacin 30 µg ... Ampicillin - Sulbactam 10/10 µg Staphylococcus aureus (MSSA) ≥15 12-14 ...
31 gru 2023 · The basic steps for the Bauer-Kirby method of antimicrobial susceptibility testing are given below. This outline of procedure is intended to be used as an adjunct to general microbiology laboratory instruction.
13 gru 2023 · This highlights the importance of antimicrobial susceptibility testing, reporting and surveillance in preventing and managing infections caused by resistant organisms. Data transparency and susceptibility testing in the clinical laboratory are more important than ever before.
