A young adult is brought to the emergency department after taking a handful of drugs. The client is unresponsive, so an endotracheal tube (ETT) is inserted. How should the nurse determine if the ETT is correctly placed? Select all that apply.

A. Assessing for symmetrical chest movement helps ensure that air is moving into both lungs, indicating proper placement of the ETT.B. Obtaining a portable chest x-ray is a definitive method to verify ETT placement in the correct position within the trachea.C. Monitoring ETT markings is useful for tracking tube displacement over time, but it does not confirm correct placement.D. Checking capillary refill is not relevant for confirming ETT placement; it assesses peripheral circulation.E. Auscultating for bilateral breath sounds confirms that air is reaching both lungs, which indicates correct placement of the ETT.