Final answer:
Children with Tetralogy of Fallot typically assume a squat/knee to chest position to help improve blood flow to the lungs, which alleviates symptoms of breathlessness and cyanosis.
Step-by-step explanation:
Kids with Tetralogy of Fallot assume the squat/knee to chest position to improve flow to the lungs. When they adopt this position, it helps to increase the resistance in the systemic circulation, which in turn directs more blood flow through the pulmonary circuit, thereby allowing for better oxygenation of the blood. When affected children feel breathless or during cyanotic spells, they may naturally take up this position to alleviate their symptoms. However, comprehensive treatment usually involves surgical repair to address the defects associated with Tetralogy of Fallot, including ventricular septal defect and pulmonary stenosis amongst others.