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Doctor insights on: How High Would Your Heart Rate Have To Be To Cause Cardiac Arrhythmia Or Cardiac Arrest

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

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. ...Read more

Dr. Warren Foster
332 Doctors shared insights

Abnormal Heart Rhythms (Definition)

Abnormal heart rhythm is a condition in which a person has an abnormal heartbeat pattern, as detected by an EKG (electrocardiogram) of the heart. Some abnormal rhythms run in families (hereditary abnormal rhythms). Some abnormal rhythms are not dangerous, while others can cause ...Read more


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

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

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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?

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

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Intermittent cardiac arrhythmia found during carotid cta 3 yrs ago. Experiencing seizures w/heart rate spikes could arrhythmia contribute to this?

Intermittent cardiac arrhythmia found during carotid cta 3 yrs ago. Experiencing seizures w/heart rate spikes could arrhythmia contribute to this?

Seizures can cause: An increase in heart rate however not the other way around. Defining the nature of the heart rate response is important. You need to see a health care provider and have them obtain the appropriate testing. ...Read more

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I recently wore a monitor for palpitations. Can you translate these results please? 1). Tha basic cardiac rhythm was sinus with episodes of cardiac arrhythmia (pr 0.14 sec). 2) patient events were at times associated with ectopy and heart rate of 6

I recently wore a monitor for palpitations. Can you translate these results please? 1). Tha basic cardiac rhythm was sinus with episodes of cardiac arrhythmia (pr 0.14 sec). 2) patient events were at times associated with ectopy and heart rate of 6

Sorry : (: Your question gets cut off after a certain number of characters so we don't have all the read. It sounds, though, like you had some extra heartbeats at the time you pressed the "record" button. This may explain what you felt at those times. ...Read more

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Is it possible beta blockers could drop heart rate too low and cause cardiac arrest? What would be a concerning heart rate?

Is it possible beta blockers could drop heart rate too low and cause cardiac arrest? What would be a concerning heart rate?

Beta Blockers: It is definitely possible for beta blockers to cause the heart rate to drop too low (called bradycardia) but cardiac arrest would be extremely unusual. A low heart rate becomes concerning when someone is having symptoms (such as sweating, dizziness, nausea, etc.) and if it doesn't increase with activity. Some elite athletes have resting heart rates below 40 bpm. ...Read more

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Around what heart rate do people go into cardiac arrest?

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

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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?

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 don't happen eve at higher rates. But its not recommended to go beyond 200-Age. ...Read more

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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?

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

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Can Intravenous Zofran for nausea/vomiting cause Cardiac arrest or ventricular arrhythmia? Is it safe for heart patients with ven. Arrhythmia?

Can Intravenous Zofran for nausea/vomiting cause Cardiac arrest or ventricular arrhythmia? Is it safe for heart patients with ven. Arrhythmia?

Zofran + arrhythmia: There are reports of arrhythmias associated with (which does not mean caused by) intravenous Zofran. Some reports have suggested the risk is higher for patients with abnormal hearts, and that is generally true for most other possibly proarrhythmic drugs. ...Read more

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Why is my heart rate so high while running? Could I be in danger of a serious arrhythmia?

Why is my heart rate so high while running? Could I be in danger of a serious arrhythmia?

Objective values: Some people are more heart aware than others. Sometimes patients think they have a high heart rate when in reality it is within normal and appropriate range. Objective evaluation by pulse meter or electrocardiographic monitoring is necessary to fully answer your question. Ask your health care provider to evaluate you at rest and during exercise to relieve your concerns. ...Read more

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Can social anxiety cause arrhythmia? In stressful situations my heart rate goes up and then I start to experience short and nasty beat irregularities.

Can social anxiety cause arrhythmia? In stressful situations my heart rate goes up and then I start to experience short and nasty beat irregularities.

Yes: But I will recommend to get a holter test and an ekg if you haven't done it to r/o a real arrhythmia or conduction abnormality. Also avoid excess of coffe, energy drinks and if other symptoms like headaches, sweating, heat intolerance, tremors are present get a thyroid test. Stay hydrated and eat healthy. ...Read more

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My brother is suffering from cardiac arrhythmia. On 12 of this month he went under RF. Doctor started sotalol due to increase in heart beat. RF FAILE?

My brother is suffering from cardiac arrhythmia. On 12 of this month he went under RF. Doctor started sotalol due to increase in heart beat. RF FAILE?

Not necessarily: The majority of people who undergo RF ablation will require medical treatment in addition. Moreover, it takes a good 6-8 weeks before the ablation success is determined since early temporary recurrence of arrhythmia is common even when it's completely successful. One must wait and see. ...Read more

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What characterizes arrhythmia during exercise? I'm a young elite athlete, heart rate seems to rise much quicker than usual. Shortness of breath.

What characterizes arrhythmia during exercise? I'm a young elite athlete, heart rate seems to rise much quicker than usual. Shortness of breath.

Exercise and heart: There are several types of heart conditions which might cause exercise-induced arrhythmias. We cardiologists take these seriously because of the concern of complications including fainting or even sudden death. An athlete with a change in exercise tolerance, shortness of breath or chest discomfort exercising, palpitations or fainting should be evaluated by a cardiologist. ...Read more

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My heart pounds very hard. It feels like punches to my chest. That's how much it is uncomfortable. Since last night. Even though my heart rate is in the 80's. are they bad palpitations. Arrhythmia. Should I be concerned?

My heart pounds very hard. It feels like punches to my chest. That's how much it is uncomfortable. Since last night. Even though my heart rate is in the 80's. are they bad palpitations. Arrhythmia. Should I be concerned?

Palpitations: Hello and welcome to HealthTap, there are multiple causes for palpitations. I want to know more about your history. I see you had a Lt heart catch, why? And we're the results? Did you had thyroid checked out? Please reduce caffeine/ tea intake, hydrate yourself and avoid any other stimulants. If you feel comfortable we ban speak about it in detail. Take care, Thank you! ...Read more

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Low blood pressure and low heart rate in runners. Am I at risk for an abnormal arrhythmia setting in?

Low blood pressure and low heart rate in runners. Am I at risk for an abnormal arrhythmia setting in?

No: Very well conditioned athletes typically have low resting heart rates and low normal blood pressure that are a result of their excellent physical shape and not because of underlying heart disease. Now, if you are feeling faint, dizzy, light headed, weak or unwell in any other way seek medical evaluation. ...Read more

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Consistently short pr interval no matter what heart rate is. Interval is always 98-110 but no delta wave. Will I get ventricular arrhythmias?

Not necessarily: You are young so your short pr interval may represent normal accelerated av conduction. It is also possible you may have a pre-excitation syndrome such as lgl, which should be evaluated by your pcp. Good luck. ...Read more

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Shoulder and back pain left side for over a week. Heart rate near 100 most of yesterday. Palpitations no shortness of breath or arrhythmia. Worried?

Shoulder and back pain left side for over a week. Heart rate near 100 most of yesterday. Palpitations no shortness of breath or arrhythmia. Worried?

Get checked: No way to tell if this is anything serious, you need to see your doctor to determine if this is a heart problem or pulled/strained muscle. Good luck! ...Read more

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Is a heart rate of 54 'ok' in a 16 yr old female? EKG showed an arrhythmia which would be considered normal. She is having excessive tiredness/dizzy

Is a heart rate of 54 'ok' in a 16 yr old female? EKG showed an arrhythmia which would be considered normal. She is having excessive tiredness/dizzy

You have bradycardia: Since you are symptomatic you need to have an ekg and holter monitoring and a cardiologist to asses and treat you ...Read more

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Diagnosed virus. No vomiting or diarrhea. Severe weakness. Ekg normal. But upon standing heart rate elevates to 120-150. I feel arrhythmia. Help!

Diagnosed virus. No vomiting or diarrhea. Severe weakness. Ekg normal. But upon standing heart rate elevates to 120-150. I feel arrhythmia. Help!

Re-evaluate: Think it's time someone take a good look at you again. What you describe is not a normal physiologic response in an otherwise healthy 20 year-old even with a "virus". ...Read more

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What happens to cardiac output and after load when when heart rate is low? Does it increase because high heart rate causes decrease in CO

What happens to cardiac output and after load when when heart rate is low? Does it increase because high heart rate causes decrease in CO

Varies.: BUT in a young healthy person, generally the heart rate is low because the heart is efficiently pumping and the cardiac output is good. Generally, (in normals), increasing the heart rate increases pumping and cardiac output. ...Read more

Heart Rate (Definition)

Heart rate is a measurement of the number of times a person's heart beats in one minute. Normal heart rates vary with a person's age and with excitement and exercise. Abnormal heart rates are too slow, too fast, and/or irregular (too much ...Read more


Dr. Jerome Zacks
234 Doctors shared insights

Cardiac Arrhythmia (Definition)

The normal heart beat starts in the sinus node of the right atrium. An arrhythmia is when the heart beats too fast, too slow, starts in a different place, or if the electrical activity of the heart circulates through a different pathway ...Read more