What is the range for normal PCO2 levels in young infants according to arterial blood gas analysis?

The normal range for PCO2 levels in young infants, according to arterial blood gas analysis, is 35-45 mmHg. This range is crucial in assessing respiratory function and acid-base balance in this age group. Young infants have different physiological responses compared to older children and adults, thus their normal values differ. Maintaining PCO2 within this range indicates adequate ventilation and respiratory function, as levels outside of this can suggest respiratory distress or other metabolic issues.

The importance of PCO2 levels lies in their role as an indicator of carbon dioxide retention, which can influence the pH of the blood. Abnormally low levels can indicate hyperventilation, while abnormally high levels can signify hypoventilation or respiratory failure. Understanding these values is essential for diagnosing and managing conditions that affect breathing and overall respiratory efficiency in infants.