The art and science of mechanical ventilator adjustments

This article describes how information from mechanical ventilator settings, ABG, pulse oximetry, and capnography are useful in making therapeutic changes in mechanical ventilator settings. The nurse can use trial and error or apply scientific principles to adjust mechanical ventilator settings efficiently to correct abnormalities in ventilation or oxygenation. Consistent application of these principles improves nursing assessment and interventions as well as prevents undue pain and expense on the patient's behalf.