What is the normal bicarbonate (HCO3-) level in the serum?

The normal bicarbonate (HCO3-) level in the serum typically ranges from 22 to 28 mEq/L. This range is crucial for maintaining acid-base balance in the body and plays a significant role in buffering excess acids and bases. Bicarbonate acts as a primary buffer in the extracellular fluid, helping to stabilize the pH of the blood.

When evaluating bicarbonate levels, it's important to understand that deviations from this normal range can indicate various metabolic conditions. For example, lower levels may suggest metabolic acidosis, while higher levels can indicate metabolic alkalosis. Understanding the normal range aids in the assessment of a patient's metabolic status and can provide insight into potential underlying health issues.

In summary, identifying the range of 22 to 28 mEq/L as the normal bicarbonate level helps healthcare professionals make informed decisions regarding diagnosis and treatment.