| rdfs:comment | - Tachycardia comes from the Greek words tachys (rapid ) and kardia (of the heart). Tachycardia typically refers to a heart rate that exceeds the normal range for a resting heart rate (heart rate in an inactive or sleeping individual). It can be dangerous depending on the speed and type of rhythm. A healthy adult heart normally beats 60 to 100 times a minute when a person is at rest. If you have tachycardia, the rate in the upper chambers or lower chambers of the heart, or both, are increased significantly. Heart rate is controlled by electrical signals sent across heart tissues. Tachycardia occurs when an abnormality in the heart produces rapid electrical signals. In some cases, tachycardias may cause no symptoms or complications. However, tachycardias can seriously disrupt normal heart fun
- Tachycardia describes a fast heart rate, generally defined as over 100 beats per minute. There are several causes of tachycardia, from heart defects to abuse of stimulant drugs (including caffeine). It is normal in a person who is exercising, where a sustained heart rate of 170 beats per minutes is not unusual. It should not occur in a person at rest unless they have an underlying condition. However, even severe anxiety can cause a mild tachycardia.
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| abstract | - Tachycardia describes a fast heart rate, generally defined as over 100 beats per minute. There are several causes of tachycardia, from heart defects to abuse of stimulant drugs (including caffeine). It is normal in a person who is exercising, where a sustained heart rate of 170 beats per minutes is not unusual. It should not occur in a person at rest unless they have an underlying condition. However, even severe anxiety can cause a mild tachycardia. Tachycardia is usually not a severe symptom unless it is combined with other symptoms. For example, tachycardia combined with an arythmia usually indicates a very serious condition. However, all cases of tachycardia at rest generally indicate a medical emergency, and immediate care should be sought. If the heart rate continues to increase, the patient can suffer from other symptoms. In most cases, the blood gases become unusual as oxygen saturates the blood and appears in veins as it cannot be used by the body's cells. If the heart rate increases further, fibrilation is a possibility.
- Tachycardia comes from the Greek words tachys (rapid ) and kardia (of the heart). Tachycardia typically refers to a heart rate that exceeds the normal range for a resting heart rate (heart rate in an inactive or sleeping individual). It can be dangerous depending on the speed and type of rhythm. A healthy adult heart normally beats 60 to 100 times a minute when a person is at rest. If you have tachycardia, the rate in the upper chambers or lower chambers of the heart, or both, are increased significantly. Heart rate is controlled by electrical signals sent across heart tissues. Tachycardia occurs when an abnormality in the heart produces rapid electrical signals. In some cases, tachycardias may cause no symptoms or complications. However, tachycardias can seriously disrupt normal heart function, increase the risk of stroke, or cause sudden cardiac arrest or death.
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