What is the typical range for total CO2/bicarbonate levels?

The typical range for total CO2 or bicarbonate levels in the blood is indeed around 23-30 mmol/L. This range is important as it reflects the body's buffering capacity and acid-base status. Bicarbonate (HCO3-) is a key component of the bicarbonate buffer system, which helps maintain pH levels within a narrow range, essential for proper cellular function.

In evaluating bicarbonate levels, healthcare professionals can gain critical insights into a patient’s respiratory and metabolic status. For instance, a level within this range indicates a balanced acid-base state, while deviations can suggest underlying respiratory or metabolic issues, which may require further investigation or intervention.

Other ranges provided in the options are significantly lower or higher than the typical clinical values, indicating potential degrees of acidosis or alkalosis if found in a patient, but do not reflect the normal physiological values typically observed in healthy individuals.