oxygen delivery to the tissues or the patient’s ventilatory function.
So be sure to consider the patient’s entire clinical presentation. Com- pared to SpO2, an ABG study pro- vides more accurate information on acid-base balance and blood oxygen saturation. Capnography is another tool used for monitoring patients receiving anesthesia and in critical care units to assess a patient’s respiratory status. It directly monitors inhaled and exhaled concentration of CO2 and indirectly monitors PaCO2.