Which of the following are common manifestations of heart failure in infants? (SELECT ALL THAT APPLY)

A. Decreased cardiac output in heart failure can lead to poor perfusion of the extremities, resulting in cool skin and decreased urine output due to reduced renal perfusion and impaired kidney function. D. Poor feeding is often observed due to increased respiratory effort, tachypnea, and fatigue associated with heart failure. Additionally, infants may exhibit failure to thrive or inadequate weight gain despite increased caloric intake due to metabolic demands and inefficient utilization of nutrients. E. Tachypnea and respiratory distress occur due to pulmonary congestion and increased respiratory effort in response to heart failure. Infants may exhibit signs such as nasal flaring, grunting, retractions, and cyanosis. B. Bradycardia and hypotension are not typical manifestations of heart failure in infants. Instead, infants with heart failure often present with tachycardia (rapid heart rate) as a compensatory mechanism to maintain cardiac output. Hypotension may occur in severe cases but is not a common finding. C. Increased appetite and excessive weight gain are not typical manifestations of heart failure in infants. Infants with heart failure often experience poor feeding and failure to thrive due to inadequate cardiac output and oxygen delivery to meet metabolic demands.