The nurse is providing instructions about how to treat a sprained ankle. What statement by the mother does the nurse recognize as indicative of a need for additional teaching?

B. The narrowing of the aorta results in increased resistance to blood flow beyond the constriction, leading to decreased blood pressure in the lower body, including the legs. As a result, the blood pressure in the arms may be significantly higher than in the legs, creating a notable blood pressure gradient between the upper and lower extremities.

A. Pulmonary edema is not a typical manifestation of coarctation of the aorta. Coarctation of the aorta involves a narrowing of the aortic arch, typically occurring after the branching of the vessels supplying the upper body.

C. Severe cyanosis is not typically associated with coarctation of the aorta. Cyanosis, a bluish discoloration of the skin and mucous membranes due to inadequate oxygenation of the blood, is more commonly seen in conditions affecting pulmonary circulation or oxygenation of the blood, such as congenital heart defects involving right-to-left shunting of blood.

D. A machine-like murmur is not a typical finding in coarctation of the aorta. The characteristic murmur associated with coarctation of the aorta is a systolic ejection murmur heard best over the back or left axilla.

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.