Objective:to develop the operational and conceptual definitions of the defining
characteristics and related factors of the nursing diagnosis Acute Pain (00132)
for nonverbal critically ill patients. Method:integrative literature review in the databases/libraries: Medical Literature
Analysis and Retrieval System Online (MEDLINE via Pubmed), Cochrane Library, The
Cumulative Index to Nursing and Allied Health Literature (CINAHL) and Latin
American & Caribbean Health Sciences Literature (LILACS). Results:799 results were found in the literature, of which 80 studies were selected for
full text reading and 16 were used in the elaboration of definitions for the 17
defining characteristics and three related factors of the nursing diagnosis. The
gray literature, ie, thesis, dissertations, books, guidelines and dictionary was
also explored to ensure the robustness needed to clarify the topics not covered by
the studies. Conclusion:the definitions aim to facilitate the identification of the nursing diagnosis for
nonverbal critically ill patients and to support future teaching and research on
the nursing diagnosis of Acute Pain (00132).