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Critical care: A concept analysis.

Martin Christensen1,2, Mining Liang1,2

  • 1School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China.

International Journal of Nursing Sciences
|August 7, 2023
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Summary
This summary is machine-generated.

Critical care, often confused with the Intensive Care Unit (ICU), is defined by specific attributes. This analysis clarifies critical care to improve research and understanding of this specialized medical environment.

Keywords:
Concept analysisCritical careIntensive careIntensive care unitIntensive therapy

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Area of Science:

  • Medical Informatics
  • Nursing Science
  • Healthcare Management

Background:

  • The terms critical care and Intensive Care Unit (ICU) are frequently used interchangeably, leading to definitional ambiguity.
  • A clear operational definition of critical care is needed to distinguish it from general intensive care.
  • Concept analysis is a valuable method for developing precise definitions in complex medical contexts.

Purpose of the Study:

  • To distinguish the use of the term critical care from the Intensive Care Unit (ICU) setting.
  • To develop an operational definition of critical care through concept analysis.
  • To clarify the scope and nature of critical care services.

Main Methods:

  • Walker and Avant's eight-step concept analysis approach was employed.
  • A comprehensive literature search was conducted across five major databases (CINAHL, Scopus, PubMed, ProQuest, Medline).
  • Inclusion criteria focused on qualitative and quantitative studies in English published between 1990 and 2022.

Main Results:

  • Forty-seven out of 439 retrieved papers met the inclusion criteria.
  • Defining attributes of critical care include: maladaptive response to illness/injury, specific admission criteria, advanced medical technologies, and specialized healthcare professionals.
  • Antecedents involved critical illness progression impacting physical and psychological functioning; consequences included death or survival with potential post-ICU syndrome.

Conclusions:

  • The study provides a conceptual understanding and operational definition of critical care.
  • This definition will aid future research in defining the scope of critical care.
  • It will facilitate the development of instruments to better evaluate care within the intensive care environment.