Define hypercapnia.

Hypercapnia is defined as an elevated level of carbon dioxide (CO2) in the blood. This condition can occur due to a variety of reasons, such as impaired respiratory function, reduced ventilation, or conditions that hinder the body's ability to expel CO2 effectively. Elevated CO2 levels can lead to respiratory acidosis, where the blood becomes more acidic, potentially resulting in symptoms like headaches, confusion, and in severe cases, can impact the cardiovascular and neurological systems.

Understanding hypercapnia is crucial for healthcare professionals, particularly in respiratory care, as it highlights the importance of monitoring and evaluating gas exchange in patients. Recognizing elevated carbon dioxide levels is instrumental in diagnosing and managing respiratory conditions, ensuring timely intervention before further complications arise.