Nursing evidence-based practice guidelines for acid base imbalance in ICU - Systematic Literature Review

Débora Moraes Reis da Silva, Isabel CF da Cruz


Acid-base disorders are conditions commonly found in Intensive Care Unit patients and occur as an attempt by the body to keep the pH within normal parameters in order to preserve cellular functions. These alterations impair the normal regulation of metabolic and enzymatic processes in the body, with high risk for multiple organ dysfunction and death. Objective: To review the nursing guidelines based on evidence that will help the intensive nurse in the identification and treatment of acid-base disorders, within 7 days. Methodology: This is an integrative review of the literature, according to the PICOT methodology, whose data collection was conducted in the period from 2012 to 2019, in the LILACS, Scielo, BDENF and PubMed databases. Results: The results reveal 10 publications that were grouped into three categories of analysis: Interpretation of gasometric tests, Care during blood collection for gasometry, Nursing assistance in the treatment of acid-base imbalance. Conclusion: During the patient's hospitalization period, several variables can influence the acid-base balance and the knowledge about blood collection and the adequate interpretation of the gasometric data become necessary for holistic care. It is up to the nurse professional to associate the clinic with the changes in laboratory value that occur with the imbalance and to evaluate the treatment options, maintaining active participation with the multiprofessional team for the reestablishment of blood homeostasis.


Acid-Base Imbalance; Intensive Care Units; Blood Gas Analysis; Nursing Care

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