What is the typical range for PaCO2 in arterial blood gases?

The typical range for PaCO2, or the partial pressure of carbon dioxide in arterial blood, is 35-45 mmHg. This range is critical as it reflects the respiratory function of the body and helps maintain acid-base balance.

Carbon dioxide is a natural byproduct of metabolism and is expelled from the body through the lungs. The balance of PaCO2 is essential for ensuring that the pH of the blood remains within normal limits. When PaCO2 levels fall below 35 mmHg, it may indicate hyperventilation or respiratory alkalosis, while levels above 45 mmHg can suggest hypoventilation or respiratory acidosis.

Understanding this range allows health professionals, particularly in paramedicine, to assess a patient’s respiratory status and guide appropriate interventions. Monitoring PaCO2 helps in identifying potential respiratory failure or disturbances in acid-base equilibrium, making it a vital component of arterial blood gas analysis.