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Research Article: Evaluating the efficacy of a standardized 4?mL/kg fluid bolus technique in critically ill patients with elevated PvaCO2: secondary analysis of two prospective studies

Date Published: 2024-03-21

Abstract:
Background: Limiting the fluid bolus (FB) volume may attenuate side effects, including hemodilution and increased filling pressures, but it may also reduce hemodynamic responsiveness. The minimum volume to create hemodynamic effects is considered to be 4?mL/kg. In critically ill patients, the hemodynamic effects of FB with this volume have not been adequately investigated and compared to higher quantities. We hypothesized that a standardized FB approach using 4?mL/kg has comparable hemodynamic and metabolic effects to the common practice of physician-determined FB in critically ill patients.

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