A client with orthopnea expresses concern about the ability to "get enough air" during a scheduled thoracentesis. On which information should the nurse's response be based?

Extra pillows can be used if needed to elevate the client's head.

The procedure is performed with the client in an upright position.

A thoracentesis is a brief procedure that has minimal discomfort.

Orthopnea is frequently caused by a client's uncontrolled anxiety.