What is the normal range for arterial and capillary PaCO2 levels?

The normal range for arterial and capillary partial pressure of carbon dioxide (PaCO2) levels is 35-45 mm Hg. This range reflects the body's ability to maintain acid-base balance and proper respiratory function. PaCO2 is an important physiological parameter as it indicates the effectiveness of carbon dioxide removal through respiration. Levels outside this range can suggest respiratory distress or other metabolic issues.

Values below 35 mm Hg may indicate hyperventilation or respiratory alkalosis, while values above 45 mm Hg can suggest hypoventilation or respiratory acidosis. This is crucial in the neonatal population, as maintaining appropriate PaCO2 levels is essential for ensuring adequate oxygen delivery and preventing complications related to respiratory function. Understanding this normal range is vital for neonatal intensive care nurses in monitoring and managing the respiratory status of their patients.