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IHI QI:104 / EXAM / 100% CORRECT ANSWERS

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What aspect of the run chart helps you compare data before and after a PDSA cycle? - ANS - The baseline median AND annotations of when specific changes were tested (PDSA cycles)Both the median and ann... otations marking specific changes let you see how observations before your PDSA cycle compare to those that come after. During a clinical rotation on the medical-surgical floor of a hospital, you notice several patients have developed urinary tract infections (UTIs) associated with their Foley catheters (tubes inserted into the bladder to drain urine). Your staff physician agrees that this is a problem and offers to help with an improvement project. Together, you work through several PDSA cycles to reduce the rate of UTIs on your floor. When designing the run chart, it is important to include: - ANS - Units of time on the X axis The run chart should display units of time — whether it's days, weeks, or months — on the X axis. The Y axis is where you plot the key variable you are measuring, which in this case is the rate of UTIs. Which of the following is a problem with static data? - ANS - It doesn't adequately portray variation. Summary statistics that are static in nature don't give you the appropriate picture of the variation that lives in your data. Although you can accurately display data such as the mean, median, or mode, it is not a good way to observe change over time. During a clinical rotation on the medical-surgical floor of a hospital, you notice several patients have developed urinary tract infections (UTIs) associated with their Foley catheters (tubes inserted into the bladder to drain urine). Your staff physician agrees that this is a problem and offers to help with an improvement project. Together, you work through several PDSA cycles to reduce the rate of UTIs on your floor. Which of the following methods would you recommend to display your improvement data? - ANS - Draw a run chart. Run charts are an effective way to view changes over time. They are much easier to interpret visually than a list of numbers or a static display of data such as a bar chart. Within the following data set, what is the median? [2.5, 7.2, 2.5, 2.9, 4.7, 3.6, 4.7] - ANS - 3.6 You calculate the median by finding the midpoint of a set of numbers. In this case, the median is 3.6, because there are three values before and three values after 3.6, making it the midpoint. What is the minimum number of data points you should usually have to look for signs of improvement on a run chart? - ANS - 10 [Show More]

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