Intravenous Fluid Management in Critically Ill Adults: A Review
Open Access
- 1 December 2020
- journal article
- review article
- Published by AACN Publishing in Critical Care Nurse
- Vol. 40 (6), e17-e27
- https://doi.org/10.4037/ccn2020337
Abstract
This article reviews the management of intravenous fluids and the evaluation of volume status in critically ill adults. Intravenous fluid administration is one of the most common interventions in the intensive care unit. Critically ill patients have dynamic fluid requirements, making the management of fluid therapy challenging. New literature suggests that balanced salt solutions may be preferred in some patient populations. The bedside critical care nurse must understand the properties of various intravenous fluids and their corresponding impact on human physiology. The nurse’s clinical and laboratory assessments of each patient help define the goals of fluid therapy, which will in turn be used to determine the optimal patient-specific selection and dose of fluid for administration. Nurses serve a vital role in monitoring the safety and efficacy of intravenous fluid therapy. Although this intervention can be lifesaving, inappropriate use of fluids has the potential to yield detrimental effects. This article discusses fluid physiology and the goals of intravenous fluid therapy, compares the types of intravenous fluids (isotonic crystalloids, including 0.9% sodium chloride and balanced salt solutions; hypotonic and hypertonic crystalloids; and colloids) and their adverse effects and impact on hemodynamics, and describes the critical care nurse’s essential role in selecting and monitoring intravenous fluid therapy.Keywords
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