What is the standard normal range for Carbon Dioxide (CO2) levels?

The standard normal range for carbon dioxide (CO2) levels in arterial blood is crucial for assessing respiratory function and acid-base balance in patients. The correct range is 35-45 mmHg. This range reflects the body's ability to maintain a proper balance of carbon dioxide, which is produced through metabolism and expelled through respiration.

When CO2 levels are within this range, it indicates that the respiratory system is effectively managing the amount of carbon dioxide in the blood, which is a key aspect of homeostasis. Deviations from this range can indicate respiratory acidosis or alkalosis, depending on whether the levels are elevated or decreased.

Understanding the normal range for CO2 levels helps identify metabolic and respiratory issues. For patients with abnormal readings outside of the 35-45 mmHg range, further evaluation may be needed to determine the underlying cause and appropriate interventions.