…syringe with a soft irrigation catheter, or an electric ear irrigator with pressure limitation, body temperature water or saline ( 36–37 °C ), a kidney dish…

…a battery , and one or two leads . The pulse generator generates the electric current needed to stimulate the myocardium. The current is delivered to the…

…ventricular fibrillation) or cardioversion (ventricular tachycardia). Non shockable rhythm : Cardiac rhythm that cannot be defibrillated or cardioverted. These rhythms include pulse less electrical activity (PEA…

…obtained by combining two or three electrodes. At any given instant during the cardiac cycle, all ECG leads analyze the same electrical events but from…

…Piezoelectric crystals have unique electromechanical properties. When an electric current is applied to a piezoelectric crystal, it starts to vibrate and these vibrations generate sound…

…metal, or tissue and fluids in the human body. Sound waves arise when a sound source generates mechanical vibrations in the particles of the medium…

…because the vibrations in the piezoelectric crystals, and thus the electric current they send back to the machine, vary with the amplitude of the reflected…

…the procedure is routine. Synchronised cardioversion or unsynchronised defibrillation Synchronised cardioversion Unsynchronised defibrillation : : : Rhythm An organised rhythm with discernible QRS complexes: atrial fibrillation, atrial flutter…

…of the normal heart axis. Figure 1. The electrical axis of the heart (heart axis). As evident from the figure, the normal heart axis is…

…range of normal heart axis. Figure 38. The electrical axis of the heart (heart axis). As evident from the figure, the normal heart axis is…