What causes a fast heart rate

The heart rate of an average person increases after exercise or physical exertion. The same is true for children, especially when they are frightened or crying.

The heart rate caused by the disease increases at most during fever, and the heart rate can increase by 10 to 15 beats per minute for every 1 increase in body temperature. Therefore, diseases that can cause fever often cause an increased heart rate, with the exception of typhoid patients, who have a slower pulse, called relatively slow pulse, which is an important feature of typhoid fever. Pneumonia, asthma and other diseases affect the heart function, and when cardiac insufficiency occurs, there will be a rapid heart rate, rapid liver enlargement, shortness of breath, and blue lips.

In children with severe anemia, the heart beat will also increase in frequency to meet the body's need for blood**. When taking medications such as atropine and epinephrine, a rapid heart rate can also occur. Diseases of the heart itself, such as myocarditis and pericarditis, can also increase the heart rate.

If the heart rate is too fast, it can generally gradually return to normal with the elimination of external factors and the improvement of the disease (such as fever subsidence, anemia improvement, and cardiac function tends to normal). Pay attention to your child's heart rate when using medications that can affect your heart rate. If the heart rate is too fast, see a doctor.

The causes of tachycardia vary widely, but the most common is that the heart itself has a disease, such as various types of heart disease, myocarditis, heart failure, etc. Systemic diseases such as anemia, fever, acute and chronic infection, shock, hyperthyroidism, and gas poisoning can also cause tachycardia. When a normal person is exercising or emotional, taking strong alcohol, strong tea, strong coffee, smoking more, and taking certain drugs can make the heart beat faster.

Thyroid function and cardiac enzymes are recommended.

Rapid heart rate is physiological and pathological.

Physiological: During and after strenuous exercise, people will have an increased heart rate, and at the same time large mood swings, which can be returned to normal without special **. Taking some medications can also cause an increased heart rate, such as atropine, caffeine, etc.

Symptoms of increased heart rate can be relieved as long as the medication is stopped, and it is not required**.

Pathological: anemia, hyperthyroidism, hypoxia, infection, high fever and other conditions may cause increased heart rate, which needs to be symptomatic**.

1.Physiological factors.

Tachycardia can be caused by strenuous exercise, nervousness, emotional agitation, drinking alcohol, and drinking strong tea or coffee.

2.Pharmacological factors.

Such as ephedrine, atropine, aminophylline, etc., can cause sinus tachycardia; Digitalis drugs, amiodarone, quinidine, chlorpromazine, tricyclic antidepressants, etc. can cause ventricular tachycardia.

3.Structural heart disease.

Such as coronary heart disease, hypertensive heart disease, rheumatic heart disease, myocarditis, congenital heart disease, pericarditis, etc.

4.Lesions of the conduction system or part of the heart muscle.

Such as sick sinus syndrome, pre-excitation syndrome, long Q-T interval syndrome, right ventricular hypoplastic ventricular tachycardia, etc.

5.Other systemic diseases.

It can be seen in hyperthyroidism, anemia, hypoglycemia, pheochromocytoma, etc.

It may be caused by heart disease, you can go for an electrocardiogram examination, and you should pay attention not to exert yourself and rest more.

The reason for the weakness of the body, although it is not detected now, but it is not good after a long time, and it can be improved a little by doing a small amount of exercise. In short, there is a gap with ordinary people.

Triggers, such as strong tea, alcohol, and drugs that stimulate the heart and increase the heart rate, should be avoided as much as possible. Maintain a good mood and prevent over-excitement and anxiety. If you have cardiopulmonary disease or other systemic diseases, you should be active**.

When the symptoms are obvious and affect daily life and work, you should seek medical attention in time to find out the cause as soon as possible to facilitate prevention and treatment.