Pathologic Function
hypoventilation Audio
hy·po·ven·ti·la·tion
Subclass of:
Signs and Symptoms, Respiratory; Respiratory Insufficiency
Etymology:
Greek hypo = under + Latin ventilatio = ventilation
Definitions related to hypoventilation:
  • A decrease in ventilation resulting in hypercapnea.
    NICHD Pediatric Terminology
    U.S. National Cancer Institute, 2021
  • A reduction in the amount of air entering the pulmonary alveoli.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • A reduction in the amount of air transported into the pulmonary alveoli by breathing, leading to hypercapnia (increase in the partial pressure of carbon dioxide).
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • A state in which there is a reduced amount of air entering the pulmonary alveoli.
    NCI
    U.S. National Cancer Institute, 2021
  • Reduction in the amount of air entering the pulmonary alveoli.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • Ventilatory failure is a rise in PaCO2 (hypercapnia) that occurs when the respiratory load can no longer be supported by the strength or activity of the system. The most common causes are severe acute exacerbations of asthma and chronic obstructive pulmonary disease (COPD), overdoses of drugs that suppress ventilatory drive, and...
    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.