An infant is admitted to the pediatric unit with heart failure due to a congenital heart defect. What assessment finding would the nurse expect with this diagnosis?

The correct answer is B: Difficulty feeding. Infants with heart failure due to a congenital heart defect may have difficulty feeding due to fatigue and poor oxygenation. This is because the heart's inability to efficiently pump blood leads to inadequate oxygen supply to meet the body's demands, causing fatigue and decreased energy for feeding. Polyuria (A) is excessive urination, not typically associated with heart failure in infants. Bradycardia (C) is a slow heart rate, which is not a typical finding in heart failure. Bradypnea (D) is a slow respiratory rate, which may occur but is not as specific to heart failure as difficulty feeding.