A cardiac monitor is a device that is used to monitor the electrical activity of a patient's heart. It is capable of displaying the heart rate of the heart in a real-time manner and providing ECG waveforms. With a cardiac monitor, medical personnel can quickly view a patient's heart rate and monitor cardiac activity. Cardiac monitors are usually equipped with a large screen display so that the ECG can be easily observed and analyzed.
Defibrillators can also be used to quickly check the heart rate and perform defibrillation. Defibrillators have the ability to recognize arrhythmias and deliver defibrillation shocks. Some defibrillators also have the ability to display heart rate and electrocardiograms to help medical personnel quickly confirm a patient's heart rate.
In summary, both cardiac monitors and defibrillators are the devices of choice when performing electrical cardiac defibrillation, and they can provide real-time heart rate information and ECG waveforms to allow medical staff to quickly view a patient's heart rate. Please note that the choice of device should be based on the specific healthcare setting and the experience of the medical staff.