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Oct 20, 2021
    • Summary
      PROBLEMS
      1. An FMEA will be performed on postoperative infections. Data is available by surgery type on the frequency, severity, and detectability of these infections. The director of quality improvement wants you to prepare a priority list giving the order in which the various sur- geries should be examined, to produce the greatest potential benefit for the organization. Severity is ranked from most severe (4) to least severe (1), and detectability is ranked from difficult to detect (4) to easy to detect (1). Calculate a frequency ranking from very high (5) to very low (1) based on the number of infections and cases shown in the following and the RPNs for each type of surgery. Which surgery should be examined first? Which surgery should be examined last? What is the maximum possible risk score for this analysis?
      Surgery Types
      Number of Infections
      Number of Cases
      Frequency
      Severity of Infections
      Detectability
      Risk Priority Number
      Thoracic 5
      Neuro 1
      Orthopedic 50
      Plastic 32
      Oral 25
      General 100
      200 3 3
      100 4 3
      2,000 2 2
      800 1 2
      500 1 1
      5,000 2 1
      2. Instead of the ordinal ranking of frequency, 1 to 5, used in problem 10.1, the director of quality improvement has collected data on the number of cases for each type of surgery and the num- ber of patients that contracted a postoperative infection. The director wants you to recalculate the RPN using the actual incidence rates of infection. Infection severity and detectability are ranked the same as in problem 10.1. Compare your new RPNs with those calculated in 10.1. How does the use of the incidence rate change the improvement work list? Which surgery should be examined last? What is the maximum possible risk score for this analysis?
      Surgery Types
      Number of Cases
      Number of Infections
      Rate of Infection
      Severity of Infections
      Detectability
      Risk Priority Number
      Thoracic 200
      Neuro 100
      Orthopedic 2,000
      Plastic 800
      Oral 500
      General 5,000
      5 3 3
      1 4 3
      50 2 2
      32 1 2

      25 1 1

      100 2 1

      Chapter ??: Failure Mode and Effects Analysis

      3. Assume that in problem 10.2 strict adherence to antibiotic administration one hour prior to thoracic surgery has reduced the rate of infection to 1.0% and severity to 2.0. How did this improvement affect the priority list? Which surgery should be the primary target for improvement?

      4. A hospital is setting its quality improvement agenda for the upcoming year and will per- form an FMEA in one area. The hospital has rated sentinel events for severity, probability, and detectability on the following scale: very high, high, moderate, low, very low. Calculate the risk priority number for each type of event. Which sentinel event should be the focus of the hospitals FMEA effort?

      Event

      Severity

      Probability

      Detectability

      Hospital-acquired High Moderate Infection

      Medication Error Moderate High

      Patient Fall Low High

      Pressure Ulcer Low High

      Treatment Delay Low High

      High

      Moderate

      Very high

      Very high

      High

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