Exam Questions / Microbiology

Antibiogram questions

Written by MicroDok
  • Define antimicrobial susceptibility testing and explain its significance in the diagnosis of infectious diseases.
  • What is antibiogram?
  • What is the therapeutic dose of a drug?
  • Mention the major goal of antimicrobial susceptibility testing.
  • Outline the cases or scenarios in which antimicrobial susceptibility testing is best prescribed for a patient.
  • Enumerate the reasons for conducting antimicrobial susceptibility testing.
  • What is the full meaning of the acronyms “NCCLS” and “CLSI”?
  • Mention the major task of NCCLS/CLSI as it relates to antimicrobial susceptibility testing.
  • Succinctly describe the “susceptible category” and “resistance category” of a drug.
  • What is the “intermediate category” of an antibiotic?
  • What is IZD?
  • What does MALDI-TOF stand for?
  • Briefly describe the phenotypic and genotypic detection techniques used to decipher drug resistant genes in potential pathogenic microbes.
  • Write a short note on the VITEK 2 automated compact system for microbial identification and antimicrobial susceptibility test.
  • How does colorimeter differ from colorimetry?
  • What is a spectrophotometer used for?
  • Define spectrophotometry.
  • Outline the benefits of the VITEK 2 automated compact system.
  • Exhaustively discuss the disk diffusion method of antimicrobial susceptibility test.
  • What is MIC?
  • Define MBC.
  • Succinctly describe the E-test system of antimicrobial susceptibility testing.
  • What is the significance of McFarland turbidity standards in antimicrobial susceptibility testing?
  • How many bacterial cells is a 0.5 McFarland turbidity standard expected to contain?
  • Outline the materials used for the preparation of McFarland turbidity standards.
  • Define quality control strains and succinctly explain their significance in antimicrobial susceptibility testing.
  • What does ATCC stand for?
  • What is the amount of antibiotic powder required to prepare 3 ml of 10 mg/ml solution of drug “A” with 99.4 % potency (994 µg/mg)?
  • Define diluents and outline the different types of diluents used in microbiological investigations.
  • What is dilution?

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