KROK 1 2013 – Question 162 · KROK (Medicine) · Microbiology, Virology, and Immunology

In the surgical ward, the dressing material was undergoing sterilization in an autoclave. Through an oversight of a nurse the mode of sterilization was changed and the temperature in the autoclave reached only 100°C instead of the due 120°C. What microorganisms can stay viable under these conditions?

  1. A. Staphylococci and streptococci
  2. B. Salmonella and klebsiella
  3. C. Mold and yeast fungi
  4. D. Corynebacteria and mycobacteria
  5. E. Bacilli and clostridia
Hint

Ask what steam at 100°C can and cannot destroy, and why a sterilizing autoclave needs pressurised steam at a higher temperature.

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