A client collapses while ambulating in the hallway. The nurse calls for help after verifying that the client is not breathing and has no palpable pulse. Which intervention should the nurse implement?

Begin chest compressions at a depth of at least 2 in (5.1 cm).

Perform forceful sternal rub to check for unresponsiveness.

Assess the client for any obvious injuries due to the sudden fall.

Remove the client's clothes and apply automated external defibrillator (AED) pads to chest.