Study for the Missouri EFDA Basic Skills Test. Use flashcards and multiple choice questions, each with hints and explanations. Prepare effectively for your certification exam!

Multiple Choice

Which statement best describes a described sterilization parameter pairing?

Sterilization parameters must match the method with the right temperature and time to effectively kill microbes. Dry heat relies on hot, dry air; because there’s no moisture to help transfer heat, you need higher temperatures for longer periods. The pairing of 300-375°F for 60-120 minutes fits this approach and is a standard dry heat cycle, making it a valid description of that method. Moist-heat steam sterilization uses moisture to transfer heat quickly, so it typically operates at around 250°F (121°C) for shorter times, like 15–20 minutes, which is a different balance than dry heat. Chemical vapor cycles also use around 270°F but with shorter exposures that are specific to that method. Ethylene oxide uses a much lower temperature and a long exposure with aeration, not the 270°F/40-minute profile listed. Because of these differences, the dry heat pairing best matches the conventional parameters for its method.

Sterilization parameters must match the method with the right temperature and time to effectively kill microbes. Dry heat relies on hot, dry air; because there’s no moisture to help transfer heat, you need higher temperatures for longer periods. The pairing of 300-375°F for 60-120 minutes fits this approach and is a standard dry heat cycle, making it a valid description of that method.

Moist-heat steam sterilization uses moisture to transfer heat quickly, so it typically operates at around 250°F (121°C) for shorter times, like 15–20 minutes, which is a different balance than dry heat. Chemical vapor cycles also use around 270°F but with shorter exposures that are specific to that method. Ethylene oxide uses a much lower temperature and a long exposure with aeration, not the 270°F/40-minute profile listed. Because of these differences, the dry heat pairing best matches the conventional parameters for its method.