<unk>  can lead to fainting. When the rate of blood flow becomes too rapid, or fast blood flow passes on damaged endothelium, it increases the friction within vessels resulting in turbulence and other disturbances. According to the Virchow's triad, this is one of the three conditions that can lead to thrombosis (i.e., blood clots within vessels).
Tachycardia
Ventricular tachycardia
Bradycardia
AV nodal reentrant tachycardia
Hypopyon
Atrial tachycardia
Cardiovascular drift
Junctional ectopic tachycardia