A nurse is caring for a client who has a tracheostomy and temperature of 39º C. which intervention will most likely lower the client’s arterial blood oxygen saturation?

Endotracheal suctioning secretions as well as gases from the airway and lowers the arterial oxygen saturation (SaO2) level. Coughing and incentive spirometry improve oxygenation and should raise or maintain oxygen saturation. Because of superficial vasoconstriction, using a cooling blanket can lower peripheral oxygen saturation readings, but SaO2 levels wouldn’t be affected.

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