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Health topics
… lower chambers are called ventricles. Normally, the heartbeat starts in the right atrium in a group of special heart … lungs and the body. What controls the timing of your heartbeat? Your heart's electrical system controls the timing of your heartbeat by regulating your: Heart rate, which is the number of …
Health topics
… problems, such as infection. There are many types of burns. Heat burns (thermal burns) are caused by fire, steam, hot … No Electrical shock Have you noticed any irregular heartbeats or are you dizzy after the electrical shock? Your … talk. It's becoming hard to breathe with activity. Heartbeat changes can include: A faster or slower heartbeat than …
Health topics
… everywhere. And this surgery is not right for everyone. Beating-heart surgery Beating-heart surgery is different from the standard CABG … and you will be connected to a heart-lung bypass machine. Beating-heart surgery (BHS) is unique. That's because the …
Health topics
… (say "bray-dee-KAR-dee-uh") means that your heart beats very slowly. For most adults, a heart rate of about 60 to 100 beats a minute while at rest is considered normal. If your heart beats less than 60 times a minute, it is slower than normal. …
Health topics
… other areas of the heart take over and cause the heart to beat. Prolonged periods of time when the heart rate is … tachycardia-bradycardia syndrome, the heart sometimes beats too quickly (tachy) and sometimes beats too slowly (brady). This abnormal heart rhythm problem …
Health topics
… volume is the amount of blood your heart pumps each time it beats, and your heart rate is the number of times your heart beats per minute. During exercise, your body may need three … you exert yourself. During exercise, your heart typically beats faster so that more blood gets out to your body. Your …
Health topics
… tachycardia (SVT) means that from time to time your heart beats very fast for a reason other than exercise, high … electrical system doesn't work right, causing the heart to beat very fast. The heart beats at least 100 beats a minute and may reach 300 beats a …
Health topics
… Overview Premature ventricular contractions (PVCs) are heartbeats that occur earlier than they should. These early beats briefly interrupt the heart's rhythm. A PVC may feel like a skipped heartbeat or a flutter. They are common in children and teens as …
Medical tests
… include shortness of breath, dizziness, fainting, and heartbeats that are rapid and irregular (palpitations). Find out … are working. These devices help to control the heartbeat. Check the health of the heart when other diseases or … Electrocardiogram (EKG or ECG) results Normal: The heart beats in a regular rhythm, usually between 60 and 100 beats …
Health topics
… heart rate (the highest number of times your heart can beat in one minute). On this page: Measuring your target … rate (HRmax) - The highest number of times your heart can beat in one minute. Target heart rate (THR / training heart rate) - The rate your heart should beat during exercise in order to get the most improvement in …
