Fig. 1From: Prospective pre- and post-race evaluation of biochemical, electrophysiologic, and echocardiographic indices in 30 racing thoroughbred horses that received furosemideAcquisition of an AliveCor tracing with device placed over the palpated apex beat (a), the AliveCor device (b), and the ECG tracing obtained at 50Â mm/s and 20Â mm/mV (c)Back to article page