How high would your heart rate have to be to cause cardiac arrhythmia or cardiac arrest?

Depends... There are heart rhythmn disorders that do not begin with an elevated heart rate. Not all cardiac arrhythmias are due to an elevated heart rate. There are rhythmn disorders that have a normal heart rate or even a slow heart rate. A normal or slow heart rate does not rule put an arrhythmia.
Not so simple. Arrythmia is not defined by the heart rate. The arrhythmia refers to a disturbance in the way the electrical impulse is generated and transmitted inside the heart. Extremes of slow and rapid heart rate are equivalent to a cardiac arrest since in these instances the heart is not pumping enough blood to maintain an effective blood pressure.
Arrythmia heart arre. You have actually two questions.Heart rhythem problems are of two kind one is when heart is beating faster then it should and second is when heart is beating slower then normal rate.They are due to disruption of normal heart rhythm.Heart rate above 120 and below 60 are the one we are cocerned and we check on ekg.Cardiac arrest is when heart stop beating and lot of time it is fatal and is emmergenc.

Related Questions

3 years ago I had a carotid CTA which detected an intermittent cardiac arrhythmia. I am experiencing heart rate spikes. Was that arrhythmia real?

Review of records. In general, the results of tests that you had done should be available to you, and you can take them to another doctor for review. Don't assume that the 2nd opinion doctor will have access to the tests unless you bring them. It is valuable to get not only the written report on paper but also for some tests the images themselves, usually on a CD. Only by seeing the data can a 2d opinion doctor help. Read more...

Heart rate normally 68 BPM brief jump to 208. Intermittent cardiac arrhythmia on recent neck scan but no follow up, palpitations 2 days ago. Ideas?

Paroxysmal atrial fibrillation. The younger patients like yourself, experiencing palpitations could have paroxysmal atrial fibrillation. If you do not have any affiliated medical problems, and considering you are young, doctors might not prescribed any medications. Read more...

Around what heart rate do people go into cardiac arrest?

Depends. No set no# Cardiac arrest occurs when d heart has trouble pumping blood 4 itself, or when electrical problems cause a malfunction. The faster the heart beats, the less time the heart has to fill blood 4 itself (the heart rests b/w beats). If there r blockages or narrowing in its arteries, or if it is weakened (from electrolyte imbalance) then it will stop beating at a lower cut-off. Theoret max is 220-age. Read more...

If a young, fit, and healthy person was exercising so hard their heart rate got up to 220 BMP, what would happen? Would they enter cardiac arrest?

Unpredeictable. As your age is 22, after reaching 198, you are predisposed to Cardiac arrythmias, instead of normal heart beat,,, abnormal unhealthy heart contractions appear which can potentially make the heart to go to arrest. Again heart does not follow rules. It happen at lower rates too and dont happen eve at higher rates. But its not recommended to go beyond 200-Age. Read more...

I keep coughing and I have a severe head cold with an avg. Resting heart rate of 110. I am scared about cardiac arrest, should I go back to a doc?

No worries. Young people can generally tolerate HR elevations like this for many days, especially if they are associated with medications like cough medicine or decongestants. . Read more...