The conditions steam sterilization needs

CRCST practice question · Sterilization Process

Which combination of factors must all be achieved for steam sterilization to be effective?

  • A. High pressure, high humidity, and a long drying phase
  • B. Temperature, chemical concentration, and aeration time
  • C. Time, temperature, saturated steam, and direct steam contact with all surfaces
  • D. Pressure, a vacuum hold, and cool-down on a solid surface

Answer

C. Time, temperature, saturated steam, and direct steam contact with all surfaces

Steam sterilization depends on the right temperature held for the right time, delivered by saturated steam that directly contacts every surface. Pressure is only the means of raising the steam temperature; it does not kill microorganisms by itself.

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