A 12-year-old male tries out for a middle school hockey team. He has a history of a heart murmur as an infant, but the doctor thought it would go away. During the tryout, he experiences severe dyspnea and becomes light-headed. At your office, he has a normal rhythm, pulse, and blood pressure and is no longer dizzy. There is a grade 4/6 systole ejection murmur that radiates to the neck. There is also an ejection click. An ECG reveals left ventricular hypertrophy. The next approach to his management includes
Correct Answer: D
Rationale: Echocardiography is essential to evaluate the severity of aortic stenosis and its effects on the heart.