hypercapnia
Sign in to saveHypercapnia (from the Greek hyper, "above" or "too much" and kapnos, "smoke"), also known as hypercarbia and CO2 retention, is a condition of abnormally elevated carbon dioxide (CO2) levels in the blood. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs.
Key facts
- Medical condition (new).name
- Hypercapnia
- Medical condition (new).image
- Main symptoms of carbon dioxide toxicity.svg
- Medical condition (new).image_size
- 300px
- Medical condition (new).alt
- Symptoms of hypercapnia
- Medical condition (new).caption
- Main symptoms of carbon dioxide toxicity, by increasing volume percent in air.
- Medical condition (new).field
- Pulmonology, critical care medicine
- Medical condition (new).synonyms
- Hypercarbia, CO2 retention, carbon dioxide poisoning
via Wikipedia infobox
Research
16,209 papers- Oxygen-induced hypercapnia: physiological mechanisms and clinical implications.Monaldi archives for chest disease = Archivio Monaldi per le malattie del torace · 2022
- Oxygen-induced hypercapnia in COPD: myths and facts.Critical care (London, England) · 2012
- Hypercapnia and its relationship with respiratory infections.Expert review of respiratory medicine · 2024
- Permissive hypercapnia.Current opinion in critical care · 2001
- Effects of hypercapnia on the lung.The Journal of physiology · 2017
via PubMed
~14 min read
Article
14 sectionsContents
- Signs and symptoms
- Causes
- During diving
- Skip breathing
- Mechanism
- Physiological effects
- Diagnosis
- Tolerance
- CO<sub>2</sub> toxicity in animal models
- Treatment
- Terminology
- See also
- References
- External links
Hypercapnia (from the Greek hyper, "above" or "too much" and kapnos, "smoke"), also known as hypercarbia and CO2 retention, is a condition of abnormally elevated carbon dioxide (CO2) levels in the blood. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs.
Carbon dioxide may accumulate in any condition that causes hypoventilation, a reduction of alveolar ventilation (the clearance of air from the small sacs of the lung where gas exchange takes place) as well as resulting from inhalation of CO2. Inability of the lungs to clear carbon dioxide, or inhalation of elevated levels of CO2, leads to respiratory acidosis. Eventually the body compensates for the raised acidity by retaining alkali in the kidneys, a process known as "metabolic compensation".