Taussig Bing anomaly is DORV with subpulmonic VSD and high pulmonary blood flow with pulmonary hypertension, with aorta to the right of pulmonary artery.
Radial artery palpable even after occluding the brachial artery by local pressure, often noted in elderly with thickened vessel wall is positive Osler sign.
Ankle brachial index is the ratio between blood pressures at the ankle and arm, an important measure in assessment of peripheral vascular disease (PVD).
Breath holding spell has a precipitating factor (does not occur abruptly) which causes the child to cry incessantly and this is followed by breath holding.