True about TOF

Tetralogy of Fallot symptoms vary, depending on the extent of obstruction of blood flow out of the right ventricle and into the lungs. Signs and symptoms may include: A bluish coloration of the skin caused by blood low in oxygen (cyanosis) Shoness of breath and rapid breathing, especially during feeding or exercise Loss of consciousness (fainting) Clubbing of fingers and toes -- an abnormal, rounded shape of the nail bed Poor weight gain Tiring easily during play or exercise Irritability Prolonged crying A hea murmur Ref : Davidson principal and practice of medicine, 22nd edition, p.no:634