Antimicrobial Susceptibility Testing — MCQs

All are true about ESBL except -

In Rideal-Walker method, plates are incubated for?

Antibiotic sensitivity and resistance of microorganisms are determined by

Earliest investigation for diagnosis of Ankylosing spondylitis:

Patient presenting with abdominal pain, diarrhea taking clindamycin for 5 days. Treated with metronidazole symptoms subsided. What is the causative agent -

A 25-year-old male from a flood-affected area presents with sudden onset of profuse, painless, rice-water diarrhoea and severe dehydration. Stool is collected and inoculated onto selective media. The plate after 18 hours of incubation at 37°C is shown (Image 1). Which single biochemical or growth characteristic of the organism forming these colonies best explains why this selective medium differentiates it from non-pathogenic vibrios such as Vibrio parahaemolyticus?

Which of the following infections can be transmitted to a baby during delivery?

2x10^2 Streptococcus viridans are inoculated into a flask containing one liter of enriched broth. If the lag time is 30 minutes and the generation time is 20 minutes, how many bacteria will there be in the culture after two and a half hours?

Reversion of Neisseria gonorrhoeae from a fimbriated (fim 1) to a non-fimbriated (fim 2) state would result in which one of the following phenomena?

All of the following statements about penicillin-binding proteins are true EXCEPT: