Quiz D and Z Values – The Intermediate Level Quiz May 25, 2024May 25, 2024 PankazzResults #1. What does the D-value represent in sterilization? The time or dose required to reduce microbial population by 90% The time or dose required to reduce microbial population by 90% The temperature at which sterilization occurs The temperature at which sterilization occurs The number of microorganisms in a sample The number of microorganisms in a sample The duration of sterilization cycles The duration of sterilization cycles #2. The Z-value measures The resistance of microorganisms to death by radiation The resistance of microorganisms to death by radiation The time it takes to achieve sterility The time it takes to achieve sterility The sensitivity of microorganisms to changes in temperature The sensitivity of microorganisms to changes in temperature The effectiveness of chemical sterilants The effectiveness of chemical sterilants #3. If the D-value at 121°C is 1.5 minutes, what would be the new D-value at 131°C (assuming a Z-value of 10°C)? 0.15 minute 0.15 minute 15 minutes 15 minutes 0.015 minute 0.015 minute 150 minutes 150 minutes #4. What is the required Sterility Assurance Level (SAL) for steam sterilization processes? 1 in 10 1 in 10 1 in 100 1 in 100 1 in 1,000 1 in 1,000 1 in 1,000,000 1 in 1,000,000 #5. Which value represents the number of degrees of temperature change necessary to change the D-value by a factor of 10? D-value D-value Z-value Z-value P-value P-value Q-value Q-value #6. What does the acronym SAL stand for? Sterilization Assessment Level Sterilization Assessment Level Sterility Assurance Level Sterility Assurance Level Sterile Action Limit Sterile Action Limit Sterilization Acceptance Limit Sterilization Acceptance Limit #7. Which temperature is commonly used for steam sterilization in autoclaves? 100°C 100°C 121°C 121°C 150°C 150°C 200°C 200°C #8. What does a Z-value of 20°C indicate? Microorganisms are highly resistant to heat Microorganisms are highly resistant to heat Microorganisms are sensitive to heat Microorganisms are sensitive to heat The D-value changes by a factor of 20 The D-value changes by a factor of 20 The sterilization process is ineffective The sterilization process is ineffective #9. Why is understanding D-values important in sterilization? To calculate the sterilization time To calculate the sterilization time To determine the optimal temperature To determine the optimal temperature To assess microbial resistance To assess microbial resistance To estimate the cost of sterilization To estimate the cost of sterilization #10. Which of the following is true about Z-values? They vary with the type of microorganism They vary with the type of microorganism They remain constant across different temperatures They remain constant across different temperatures They are measured in minutes They are measured in minutes They are inversely related to the D-value They are inversely related to the D-value FinishRelated Posts Quiz Cell Wall- The Easy Peasy Quiz June 14, 2024June 14, 2024 Pankazz Quiz Biosafety Cabinets- The Easy Peasy Quiz May 25, 2024May 26, 2024 Pankazz
