A patient with an oral endotracheal (ET) tube has tube feeding in progress. To address the risk for aspiration, the nurse will perform which intervention for this patient?

Remove the bite block and perform oral hygiene every 2 hours.

Use chest physiotherapy to allow secretions to be suctioned.

Maintain cuff pressure to prevent gastric secretions from entering trachea.

Keep head of bed elevated at least 30-45 degrees.