The Nurse Is Preparing to Measure a Client's Pulmonary Artery

The nurse is preparing to measure a client's pulmonary artery wedge pressure (PAWP) .In what position will the nurse place the client for the most accurate results?

A) Supine, with the head elevated to 45 degrees
B) Supine, with the head elevated to 30 degrees
C) Reverse Trendelenburg position at 15 degrees
D) Supine, with the head of the bed flat