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If you are using a portable handheld EKG monitor, you need to understand fundamental ECG tracings and parameters. The chambers of the heart pump with the involuntary release of electricity from the sinoatrial (SA) node. When the SA node releases electricity, both atria contract, and the electrical impulse is transmitted to the atrioventricular (AV) node, positioned between the 2 ventricles. By learning the electrical activity that takes effect when heart muscles contract, we understand better the wellbeing and mechanisms of the heart. Arrhythmia is an irregular heart rhythm, resulting from some variations, abnormality, or breakdown in the conduction system of the heart. Typically caused by reentry currents inside the atria, or between atria and ventricles, creating higher heart rates of 140 to 250.
Normal beats, but brought about at an irregular interval from 60 to 100 beats per minute, coming out with variable R-R interval.
160 beats per minute for 5 seconds changing back and forth to normal sinus rhythm at 80 beats per minute. P-wave always goes before the QRS complex, but PR interval is prolonged over 0.2 second, or 5 small squares. PR interval gradually lengthens, leading finally to the dropout of the QRS complex (Wenkebach Phenomenon).

Wide QRS complex, usually more than 120ms or 3 small squares; and wide S-wave, caused by partial or complete blockage of signal along the right branch below the bundle of HIS. Wide QRS complex and wide S-wave, caused by partial or complete blockage of signal along the right branch below the bundle of HIS. A beat takes place early in the atria, causing the heart to beat before the next regular beat. Every second beat is followed by a premature contraction (two normal QRS complexes followed by a PVC). Peel off the sticker from the backing sheet, and stick on the object you want to decorate.  Apply to any object you like, such as the bag, book, gift, card, wall, mobile phone, MP3, desk, wall , windows, stationery, note book, but no body contact!!
We can produce various items such as key chains, gifts, shoe material, trademarks, glue chapter, ornaments, tag, size, photo frame, mobile phone ornaments, fridge magnet, mouse, paste, non-slip mat, key buckle, stationery, jewelry, clothing bags accessories, zipper head, coasters, mugs, notebooks, wrist strap, and so on. You should learn how to recognize some of the differences between regular and irregular ECG tracings, so that you can maximize your use of your personal ECG monitor. The 2 smaller upper chambers are known as the atria, and the bigger lower chambers are known as the ventricles.
The SA node, also known as the heart’s natural pacemaker, is a group of specialized cells situated in the right atrium.
The electrical wave is then spread from the AV node to the ventricles by means of the bundle branches.

These electrical activities can be identified, recorded, and studied with an electrocardiograph, such as the ReadMyHeart handheld ECG monitor.
Early diagnosis of an arrhythmia is dearly significant, since the longer an arrhythmia lasts without being discovered or treated, the bigger the odds of permanent impairment and additional heart dysfunction.
The right atrium accepts oxygen-depleted blood returning from the body through 2 large veins: the superior vena cava and inferior vena cava. The right atrium pumps this blood into the right ventricle, which then pumps the blood into the lungs, where it gets oxygenated.
The oxygenated blood then comes back into the left atrium, which is then pumped into the left ventricle. The left ventricle then pumps the blood back to the circulatory system through the aorta, which is the largest artery in the body. The pressure that the left ventricle applies to maintain blood flow all over the body is the blood pressure.

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