tachycardiában

Tachycardia is a medical term used to describe a heart rate that is too fast. Generally, a resting heart rate in adults is considered to be above 100 beats per minute. This can affect individuals of all ages, though the specific rate considered tachycardic can vary by age. The heart is a muscle responsible for pumping blood throughout the body. When the heart beats too quickly, it may not be able to pump blood efficiently, leading to various symptoms.

There are several types of tachycardia, broadly categorized into supraventricular and ventricular tachycardias, depending on where in the heart the rapid rhythm originates. Causes can range from simple physiological responses to strenuous exercise or stress, to underlying medical conditions such as heart disease, thyroid problems, anemia, or electrolyte imbalances. Certain medications and substances, like stimulants or caffeine, can also contribute to an elevated heart rate.

Symptoms associated with tachycardia can vary and may include palpitations, a racing heart sensation, dizziness, shortness of breath, chest pain, or fainting. In some cases, tachycardia may not cause any noticeable symptoms. Diagnosis typically involves a medical history, physical examination, and tests like an electrocardiogram (ECG or EKG) to record the heart's electrical activity. Treatment depends on the underlying cause and the type of tachycardia and may involve lifestyle changes, medication, or medical procedures.