Arterial blood gas (ABG) analysis provides important information about a patient’s overall acid-base status, as well as information about oxygenation and ventilation. Most ABGs typically provide some basic electrolyte concentrations. Co-oximetry measures concentrations of oxygenated hemoglobin (oxyHgb), deoxygenated hemoglobin (deoxyHgb or reduced Hgb), carboxyhemoglobin (COHgb), and methemoglobin (MetHgb) as a percentage of the total hemoglobin […]