The nurse working in the outpatient dialysis center is assisting in performing hemodialysis and notes the client’s  BP has decreased to 81/50 mm Hg during treatment. The nurse intervened by reducing the temperature of the dialysate, adjusting the rate of the dialyzer blood flow, placing the client in Trendelenburg position, and administering albumin as prescribed. The BP after these interventions was 80/52 mm Hg, and the client reports chest pain that is relieved when leaning forward.

Based on this clinical scenario, select a condition and an underlying cause to fill in each blank in the following sentence:

The client is most at risk for developing