Final answer:
Auscultation is used to identify the heart murmur in Tetralogy of Fallot, which arises from turbulent blood flow due to anatomical heart defects, and is confirmed via echocardiography imaging.
Step-by-step explanation:
The murmur of Tetralogy of Fallot is identified through auscultation, wherein a clinician listens to the heart using a stethoscope for unusual sounds that arise from turbulent blood flow. In contrast to normal heart sounds, which consist only of S1 ("lub") and S2 ("dub"), individuals with Tetralogy of Fallot may exhibit a distinct heart murmur due to the anatomical abnormalities present in this condition, such as a ventricular septal defect and obstruction of the pulmonary valve.
The murmur associated with Tetralogy of Fallot is typically harsh and systolic, and may be accompanied by other symptoms such as cyanosis and dyspnea. This condition is confirmed using echocardiography imaging and often requires surgical intervention for treatment.