Pathologic Function
hypervolemia
Definitions related to fluid overload:
  • (volume overload) Excessive accumulation of intravascular fluid resulting from compromised regulatory mechanisms.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • (hypervolemia) Abnormal increase in the volume of circulating fluid (plasma) in the body.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • (hypervolemia) An abnormally high circulating blood volume.
    U.S. FDA Glossary
    U.S. Food & Drug Administration, 2021
  • (hypervolemia) An increase in the amount of intravascular fluid, particularly in the volume of the circulating blood.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • (hypervolemia) Fluid accumulation in tissues and body cavities.
    NCI
    U.S. National Cancer Institute, 2021
  • Volume overload generally refers to expansion of the extracellular fluid (ECF) volume. ECF volume expansion typically occurs in heart failure, kidney failure, nephrotic syndrome, and cirrhosis. Renal sodium retention leads to increased total body sodium content. This increase results in varying degrees of volume overload. Serum sodium...
    Merck Manuals
    Merck & Co., Inc., 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.