What is the normal serum range for bicarbonate in mmol/L?

The normal serum range for bicarbonate typically falls between 22-28 mmol/L, with some sources widening the acceptable range to 22-33 mmol/L. Bicarbonate serves as a key component in the body's acid-base balance, helping to regulate pH levels in the blood. Maintaining this range is crucial for proper physiological function, as both low and high levels can indicate underlying health issues, such as metabolic acidosis or alkalosis.

The selected range reflects common laboratory reference values, making it the most accurate choice among the options provided. Understanding this range is essential for nutrition coaches when assessing client health, as imbalances in bicarbonate levels can affect metabolic processes and overall well-being.