A nurse is assessing a 3-year-old child who has aortic stenosis. Which of the following findings should the nurse expect? (Select all that apply.)
A.
Bradycardia
B.
Murmur
C.
Clubbing of the nail beds
D.
Weak pulses
E.
Hypotension
The correct answer and Explanation is :
The correct answers are B. Murmur, D. Weak pulses, and E. Hypotension.
Explanation:
Aortic stenosis is a congenital or acquired heart condition characterized by the narrowing of the aortic valve, leading to obstruction of blood flow from the left ventricle to the aorta. This results in increased pressure in the left ventricle and reduced systemic blood flow, especially in severe cases.
Here is an explanation for each of the expected findings:
B. Murmur:
A heart murmur is a common finding in children with aortic stenosis. This murmur is usually due to the turbulent blood flow across the narrowed aortic valve and can be heard during auscultation, typically as a systolic ejection murmur. The intensity and quality of the murmur may vary based on the severity of the stenosis.
D. Weak pulses:
Children with aortic stenosis often have weak or thready peripheral pulses due to reduced blood flow from the left ventricle. The obstruction of the valve impairs the heart’s ability to pump effectively, leading to diminished pulse strength in the extremities.
E. Hypotension:
Because of the restricted blood flow, the child may experience low blood pressure (hypotension). The left ventricle has to work harder to pump blood through the narrowed valve, and as a result, systemic perfusion can be compromised, particularly during physical activity or stress.
Incorrect Options:
A. Bradycardia:
Bradycardia is not typically associated with aortic stenosis in children. Instead, tachycardia (increased heart rate) is more common as the heart tries to compensate for the reduced cardiac output.
C. Clubbing of the nail beds:
Clubbing of the nail beds is usually associated with chronic hypoxemia or long-standing lung diseases, not aortic stenosis. This finding would be more expected in conditions like cyanotic heart diseases (e.g., Tetralogy of Fallot).
In conclusion, children with aortic stenosis often present with a murmur, weak pulses, and hypotension due to impaired blood flow through the heart.