What is the normal bicarbonate (HCO3) level in an ABG analysis?

The normal bicarbonate (HCO3) level in an arterial blood gas (ABG) analysis typically ranges between 22-26 mEq/L. Bicarbonate is a crucial component of the body's buffering system, helping to maintain acid-base balance in the blood. When analyzing ABGs, understanding this range is essential for assessing a patient’s metabolic status.

Levels below the normal range can indicate metabolic acidosis, where the body produces too much acid or the kidneys are not removing enough acid from the body. Conversely, levels above the normal range might suggest metabolic alkalosis, which may occur due to excessive loss of acid or an increase in base. This knowledge is vital for flight paramedics when evaluating patients, as it helps guide diagnosis and treatment in critical situations.