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Related Concept Videos

Fatigue01:21

Fatigue

Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
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Design Consideration

Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
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Hazard Rate01:11

Hazard Rate

The hazard rate, also known as the hazard function or failure rate, is a statistical measure used to describe the instantaneous rate at which an event occurs, given that the event has not yet happened. From a probabilistic perspective, it represents the likelihood that a subject will experience the event in a very small time interval, conditional on surviving up to the beginning of that interval. In terms of frequency, the hazard rate can be viewed as the ratio of the number of events to the...
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Reliability and Validity01:29

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Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.

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Is failure mode and effect analysis reliable?

Nada Atef Shebl1, Bryony Dean Franklin, Nick Barber

  • 1Department of Practice and Policy, The School of Pharmacy, University of London, London, UK. nada.shebl@pharmacy.ac.uk

Journal of Patient Safety
|November 19, 2009
PubMed
Summary
This summary is machine-generated.

Failure mode and effect analysis (FMEA) reliability is questionable in hospitals. Two groups identified similar care steps but different failures and risk priorities, impacting patient safety improvements.

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Area of Science:

  • Healthcare Quality and Safety
  • Risk Management in Medicine
  • Clinical Process Improvement

Background:

  • Failure Mode and Effect Analysis (FMEA) is a proactive risk assessment tool used in healthcare.
  • Its reliability in diverse hospital settings, particularly within the UK's National Health Service (NHS), requires rigorous evaluation.

Purpose of the Study:

  • To assess the inter-rater reliability of FMEA when applied by separate multidisciplinary teams to the same clinical process.
  • To determine the consistency of failure identification and risk prioritization using FMEA in a hospital environment.

Main Methods:

  • Two multidisciplinary teams conducted parallel FMEAs on vancomycin and gentamicin use across two hospitals within the same NHS Trust.
  • Standard FMEA steps were followed: process mapping, failure identification, scoring (severity, probability, detectability), and recommendations.

Main Results:

  • Both teams identified 5 key steps in antibiotic management but found only 17% common failures.
  • Significant discrepancies were observed in severity, detectability, and risk priority number (RPN) scores, leading to different failure prioritization.

Conclusions:

  • While FMEA aids in understanding processes and identifying potential errors, its reliability is questionable due to inconsistent failure identification and risk scoring.
  • Discrepancies in FMEA outcomes hinder reliable prioritization of patient safety interventions, suggesting organizations should not solely rely on FMEA findings.