A postoperative client following a thyroidectomy suddenly develops difficulty breathing, stridor, and an increase in swelling of the anterior neck area. What should the nurse do first?

Activate the hospital’s emergency or rapid response system.

Place a heart monitor on the client and observe for dysrhythmias.

Ask the charge nurse to come see the client immediately.

Check the client’s blood pressure and heart rate.

Provide a calm and assuring environment for the client.