A nurse is assessing a client who has syndrome of inappropriate antidiuretic hormone. Which of the following findings should the nurse expect?

A. Excessive urinary output: In syndrome of inappropriate antidiuretic hormone (SIADH), there is decreased urinary output, not excessive output. The body retains water due to increased antidiuretic hormone (ADH), leading to fluid retention. B. Elevated sodium level: Due to excessive water retention and dilution of electrolytes, clients with SIADH typically experience hyponatremia (decreased sodium level), not an elevated sodium level. The retained water dilutes the body's sodium concentration. C. Bounding peripheral pulses: Bounding peripheral pulses are expected in SIADH due to fluid overload, as the body retains excessive water. This leads to increased blood volume and can cause the peripheral pulses to feel strong or "bounding." D. Hyperactive deep tendon reflexes: Hyperactive deep tendon reflexes are typically associated with conditions such as hypercalcemia or hyperthyroidism, not SIADH. SIADH is more likely to cause muscle weakness and fatigue due to hyponatremia.