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Critical Region, Critical Values and Significance Level01:16

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The critical region, critical value, and significance level are interdependent concepts crucial in hypothesis testing.
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Related Experiment Video

Updated: Feb 15, 2026

Manual Muscle Testing: A Method of Measuring Extremity Muscle Strength Applied to Critically Ill Patients
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[Critical care testing: SFBC recommendations in 2018].

Michel Vaubourdolle1, Jean-Caude Alvarez2, Françoise Barbé2

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Summary

The SFBC Working Group updated recommendations for laboratory medicine turnaround times (TAT) in emergency care. These guidelines consider clinical needs and lab capabilities, emphasizing local adaptation for physicians and lab specialists.

Keywords:
ISO 15189accreditationcritical care testingguidelinesturnaround time

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Area of Science:

  • Medical Laboratory Science
  • Critical Care Medicine
  • Clinical Pathology

Background:

  • Establishing optimal turnaround times (TAT) for laboratory testing in critical care is essential for timely patient management.
  • Previous recommendations by the SFBC Working Group required updating to reflect current clinical realities and laboratory capacities.
  • Standardizing emergency laboratory testing protocols enhances patient safety and clinical decision-making.

Purpose of the Study:

  • To present updated SFBC recommendations for maximal turnaround times (TAT) in emergency laboratory medicine.
  • To provide a framework for determining appropriate TAT based on clinical situations and laboratory capabilities.
  • To guide the integration of these recommendations into local clinical-biological contexts.

Main Methods:

  • Review and update of a previously published table of TAT recommendations.
  • Consideration of diverse clinical scenarios encountered in emergency settings.
  • Assessment of the emergency response capabilities of medical laboratories.

Main Results:

  • Updated recommendations for maximal turnaround times (TAT) for laboratory examinations in emergency conditions.
  • A revised table incorporating updated clinical and laboratory considerations.
  • Emphasis on the need for local adaptation of recommendations.

Conclusions:

  • The updated SFBC recommendations provide a crucial resource for optimizing emergency laboratory testing.
  • Local adaptation of these guidelines is necessary to align with specific clinical-biological contexts and laboratory resources.
  • Collaboration between physicians and laboratory specialists is key to successful implementation.