The ICU nurse is assigned to provide nursing care to a client receiving mechanical ventilation. Which action should you delegate to the experienced unlicensed assistive personnel (UAP)?

Taking vital signs and pulse oximetry readings every hour.

Checking the ventilator setting to make sure they are set as prescribed.

Observing if the client's endotracheal tube needs suctioning every 2 hours.

Assessing the client's respiratory status every 4 hours.