A client is recovering from a myocardial infarction (MI) and develops chest pain on day 3 that increases when taking a deep breath and is relieved by leaning forward. Which action should the nurse take next?

A. Assess for splinter hemorrhages
B. Auscultate for a pericardial friction rub.
C. Check the heart monitor for frequent PVCs.
D. Palpate the radial pulses bilaterally.