Sinus tachycardia is an arrhythmia caused by an irregular sinus rhythm. This happens when the sinus node (the natural pacemaker of the heart) begins to beat too quickly. As a result, the heart rate rises, which can cause a variety of symptoms.
If left untreated, this condition can be dangerous and lead to cardiac arrest. The sinus tachycardia ECG employs electrodes placed on the chest and linked to a machine that measures the electrical activity of the heart. It can help determine whether the sinus tachycardia is caused by a sinus node problem or another area of the heart.
There are numerous causes of sinus tachycardia, and it is critical to obtain an accurate diagnosis so that appropriate treatment can begin. If you suspect you have it, you must see a doctor and have an ECG performed to rule out any possible issues.