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The most common cause of a stroke. 100-175 bpm for over a long period causes the heart muscle to weaken and cause cardiac death. The AV node is bombarded with electrical impulses like the on-ramp on I-75 during rush hour, with so many ventricles trying to get on at the same time.

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Atrial flutter (AFL) is an abnormal heart rhythm that occurs in the atria of the heart

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Atrial flutter (AFL) | Circulatory System and Disease | NCLEX-RN | Khan Academy

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A noticeably rapid, strong, or irregular heartbeat due to agitation, exertion, or illness.

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not to be confused w/ a heart attack, cardiac arrest is when the hearts electrical system malfunctions; caused by Arrythmias

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Heartbeats that occur earlier than they should. These early beats interrupt the heart's rhythm. It may feel like a skipped heartbeat or a flutter. The most common type of change in heart rhythm. Can happen in the atria or ventricles. With PVCs, the ventricles beat early. An extra beat is followed by a pause and then a stronger heartbeat. It's this stronger heartbeat that creates the feeling of a skipped beat or a flutter.

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Premature Ventricular Contractions | St. Jude Medical

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Find patient information from St. Jude Medical about the symptoms and causes of premature ventricular contractions (PVCs, also called early or extra heartbeats)

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Premature atrial contractions (PAC), are a common cardiac dysrrhythmia characterized by premature heartbeats originating in the atria. ... PACs found in healthy young people are more likely to lead to other heart conditions or even death.

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Premature atrial contractions (PAC), are a common cardiac dysrrhythmia characterized by premature heartbeats originating in the atria. ... PACs found in healthy young people are more likely to lead to other heart conditions or even death.

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Supraventricular Tachycardia (SVT) or Paroxysmal Supraventricular Tachycardia (PSVT) is a rapid, regular heart rate beats anywhere from 150-250 times per minute. The word “paroxysmal” means occasionally or from time to time.This happens when electrical signals in the heart’s upper chambers fire abnormally, which interferes with electrical signals coming from the SA node (the heart’s natural pacemaker). The beats in the atria then speed up the heart rate. Common in infants and young people, more likely to occur in women, anxious young people, and people who are extremely tired (fatigued). People who drink a lot of coffee or alcohol or who are heavy smokers also have a greater risk.

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Supraventricular Tachycardia (SVT) or Paroxysmal Supraventricular Tachycardia (PSVT) is a rapid, regular heart rate beats anywhere from 150-250 times per minute. The word “paroxysmal” means occasionally or from time to time.This happens when electrical signals in the heart’s upper chambers fire abnormally, which interferes with electrical signals coming from the SA node (the heart’s natural pacemaker). The beats in the atria then speed up the heart rate. Common in infants and young people, more likely to occur in women, anxious young people, and people who are extremely tired (fatigued). People who drink a lot of coffee or alcohol or who are heavy smokers also have a greater risk.

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Treatment: vagal maneuvers-such as gagging, holding your breath and bearing down (Valsalva maneuver), immersing your face in ice-cold water (diving reflex), or coughing. Medications: may also prescribe a short-acting medicine that you can take by mouth. OR if  severe, electrical cardioversion. If persistant condition may need catheter ablation.

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Systole is the time when the heart is contracting (systolic pressure is the maximum arterial pressure during contraction of the left ventricle of the heart). BP of the systolic pressure is usually the first number recorded. For example, with a blood pressure of 120/80 the systolic pressure is 120.

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is defined as a cardiac arrest rhythm in which there is no electrical activity in the heart. It is sometimes referred to as a “flat line.” Confirmation that a “flat line” means you died!

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tachycardia
Jamie http://uoflphysiciansse3.adam.com/content.aspx?productId=117&pid=1&gid=000187
Abnormal electrical signals cause ventricles (lower chambers of the heart) to contract rapidly, more than 100 beats per minute, thus causing the blood to be ineffectively pumped through the body causing a rapid decrease in blood pressure.V-Tach has many causes such as, enlarged heart, heart disease, high blood pressure, electrolyte imbalance, too much caffeine,

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A condition in which the heart beats with an abnormal or irregular rhythm. The heart beats irregularly, too fast, or too slow because the electrical impulses are not working correctly. Your heart may skip a beat, flutter, or race.
In order to treat arrhythmia:
1) Maintain a healthy weight
2) Exercise
3) Eat heart-healthy foods

~Christina

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Heart beats less than 60 times per minute. Can mean a very healthy person who is physically fit or could indicate a problem with the electrical activity in the heart. As a person ages (over 65) the electrical system of the heart often doesn't function normally.

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Ventricular Fibrillation (V-Fib) is an extremely rapid episode of painful arrhythmias that can caused by cardiac arrest in the heart's lower chamber.

While a healthy heart can pump at nearly 75 heart-beats a minute, an episode of V-Fib can produce over 300 heart-beats per minute!

It can cause: fainting, hypotension, shortness of breath, nausea, and sudden death. It can be treated with both CPR, and an AED (Automatic Electric Defibrillator) device.

http://goo.gl/fmRt63

(Sources: AHA, Google/Mayo Clinic, ACLS Institute)

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Atrial or Supraventricular tachycardia (SVT) is a fast heart rate that starts in the upper chambers of the heart. A heart rate of more than 100  BPM in adults is called tachycardia. More common in women, but may occur in either sex. Most common type of arrhythmia in children, heavy coffee drinkers, smokers and alcohol drinkers.