I AM A LOOKING TO GO

What audible finding is consistent with this presentation?

Figure 1 Quiz of the Week A 40-year-old male presents to the emergency department with sharp chest pain and palpitations. He says the pain is worse when he lies down and is exacerbated by coughing, but improves when he moves to a seated position. He was recently diagnosed with systemic lupus erythematosus (SLE) after investigation…