Hypercapnia
(Redirected from Hypercapnic)
Hypercapnia, also known as hypercarbia, is a medical condition characterized by an excessive amount of carbon dioxide (CO2) in the bloodstream. It is most often associated with respiratory conditions that inhibit proper lung function, leading to insufficient gas exchange and subsequent buildup of CO2.
Pathophysiology[edit | edit source]
Hypercapnia occurs when the body's respiratory system fails to remove sufficient carbon dioxide during respiration. This can be due to conditions that affect lung function such as chronic obstructive pulmonary disease (COPD), pneumonia, and asthma, as well as conditions that impair the control of respiration like certain neurological diseases.
In the bloodstream, carbon dioxide is primarily carried in the form of bicarbonate. An increase in CO2 concentration shifts the body’s pH balance towards acidosis, which can impair enzyme function and cellular processes.
Clinical Manifestations[edit | edit source]
Symptoms of hypercapnia can vary depending on the severity and rate of onset. They may include shortness of breath, lethargy, confusion, and in severe cases, can lead to respiratory failure or even loss of consciousness. Chronic hypercapnia can often be tolerated better than acute hypercapnia as the body adapts to the elevated CO2 levels.
Diagnosis and Management[edit | edit source]
Hypercapnia is typically diagnosed through arterial blood gas (ABG) analysis, which measures the partial pressures of oxygen and carbon dioxide in arterial blood.
The management of hypercapnia involves treating the underlying cause. This might involve supplemental oxygen, medications to improve lung function in diseases like COPD, or in severe cases, mechanical ventilation.
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References[edit | edit source]
- "Hypercapnia: Clinical Relevance and Mechanisms of Action." Current Opinion in Critical Care. Journal article - Current Opinion in Critical Care
- "Hypercapnia." StatPearls. StatPearls
- "The Physiological Consequences of Hypercapnia." Critical Care. Biomedcentral
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