Fig 4.3.1 The CR Time Constant Fig 4.3.1 The CR Time Constant When a voltage is applied to a capacitor it take some amount of time for the voltage to increase in a curve that follows a mathematically exponential law to its maximum value, after which, the voltage will remain at this steady state value until there is some other external change to cause a change in voltage.
Some of the medicines used to restore a normal heart rhythm are amiodarone, sotalol, flecainide, propafenone, dofetilide, ibutilide, quinidine, procainamide, and disopyramide. These medicines often have side effects. Some side effects can make an arrhythmia worse or even cause a different kind of arrhythmia.
Treatment also depends on the symptoms. If bradycardia doesn't cause symptoms, it usually isn't treated. If damage to the heart's electrical system causes your heart to beat too slowly, you will probably need to have a pacemaker. A pacemaker is a device placed under your skin that helps correct the slow heart rate. People older than 65 are most likely to have a type of bradycardia that requires a pacemaker.