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Doctor insights on:
What Is A Dangerously High Heart Rate
1
What is a considered a dangerously high heart rate?

Heart rate: Normally heart rate responds to exercise or physiologic demand levels. Usually we don't see it go over 180-200 even with high levels of exercise. This level while tolerated by 'normals' may be dangerous in patients with heart disease or other forms of disease. In other words, one number doesn't fit all. ...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
2
How dangerous is a high resting blood pulse rate?

It depends on you.: This can be due to a number of reasons. It can be possibly from a heart condition, like arrhythmia, or an electrolyte imbalance like hyperkalemia. Drugs are a major cause and concern, and this can be from an overdose of many therapeutic drugs or use of recreational drugs, like cocaine. This really impacts on how serious this finding is so see your doctor to find out the cause or for a check-up. ...Read more
3
At what point does a high heart rate during exercise become dangerous? Would an extremely high heart rate of 250-270bpm be considered dangerous?

Maximum: Maximum predicted heart rate is calculated as 220-age. For a 22 year old the maximum heart rate is therefore 198 bpm. If your heart rate reaches 250-270 during exercise, it would be best to get evaluated. ...Read more
4
Is a low heart rate normal?

Low heart rate: It depends on how low and how physically fit. Athletes can have heart rates in the 40's and be normal. ...Read more
5
Is low heart rate a problem?

Possibly : If it causes symptoms of lightheadednes, dizziness, fatigue and /or low blood pressure. See your doctor. ...Read more
6
How dangerous is high pulse rate of heart ?

May be very dangerou: There are many reasons for a very rapid heart rate. Some may be quite serious and even life threatening You should see your physician and be evaluated with EKG and other tests ...Read more
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7
I have a low heart rate but i'm overweight? A low heart rate is better than a high heart rate right?

Not necessarily: It depends on how low the heart rate is and whether the heart rhythm is normal or abnormal. A high resting heart rate is more indicative of heart disease or other types of medical problems than a low resting heart rate so long as the low heart rate is not too low. ...Read more
8
What is the resting pulse rate number that is dangerously too fast?

Heart rate: Heart rate of 100 if at rest is faster than normal. It is not dangerous in and of itself. What is important is why it should be elevated at rest and there are many possibilities for this. ...Read more
9
What is considered dangerously high pulse rate?

Depends: The maximum predicted heart rate for an individual is roughly 220 minus age. Sustained heart rates above this are not advisable and could be dangerous. In general, rapid heart rates that are associated with symptoms such as chest pain, shortness of breath, or dizziness could be potentially dangerous. ...Read more
10
Is a very high pulse rate and low blood pressure dangerous?

Could be.: Very high pulse and low BP is a harbinger of shock. Could also be associated with vasovagal reaction - the typical "swoon." everything needs to be interpreted in context, but in general this combo signals that something ain't right. It is not dangerous in and of itself, but underlying problem needs correction. ...Read more
11
My resting heart rate is really high. Is this indicative of anything?

Heart rate: Lots of possibilities including but not limited to anemia, hyperthyroid, poor conditioning, hypotenuse, dehydration, excess catecholamines......... ...Read more
12
What is a high sed rate indicating?

Inflammation: The sed rate is a slow reacting blood test that can help determine inflammation in the body. The test results can't tell you what is inflamed, just that something is inflammed. Your doctor needs to determine the cause of the inflammation. ...Read more
13
What is harder on heart: high pulse rate and high blood pressure?

Both can be: This depends on your individual risks. Diet and exercise can lower both, but this can take awhile. Medications also work. You should talk with your doctor. ...Read more
14
What rate is considered a rapid heart rate?

Heart rate: Over 100 beats a minute at rest is considered rapid. ...Read more
15
What is considered a high pulse ox?

96-100%: It can only be "too high" when you suffer from certain chronic pulmonary disorders. Otherwise 95-100% is perfectly normal. ...Read more
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16
Is a resting heart rate of 120 high?

Yes: Your heart rate should be around 70. Please consult your doctor. See this site for more info. http://www.webmd.com/heart-disease/features/5-heart-rate-myths-debunked ...Read more
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17
Is a low pulse rate with high blood pressure dangerous for an elderly woman?

Depends.: Low pulse rate associated with symptoms or below 50 without meds probably requires some investigation. The degree of BP elevation determines how "dangerous" it is. In elderly patients it is often reasonable to accept higher baseline bp's rather than to push medications. If i can get a BP down to 140/90 range without side effects in an 80 year old I am generally pleased. ...Read more
18
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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19
I have a low resting heart rate is that normal?

Can be.: Typically, a lower heart rate is a reflection of good cardiovascular shape. For example, professional bicyclers can have resting hr in the upper 30's per minute. The exception to the low resting heart rate comments above would be if you have symptoms from low heart rate or if your heart rate cannot raise normally with exertion. These people require evaluation to see if they need a pacemaker. ...Read more
20
Is it possible to have high levels of adrenaline if blood pressure is on low side but heart rate is high (resting 90-105) (exercising 175-200)?

Possibly: There are rare disorders where adrenaline levels are high. You can see an endocrinologist to help see if you have one. The more likely explanation is elsewhere- perhaps anemia, caffeine, medications (cymbalta (duloxetine) can do this), or heart related. ...Read more
21
What is a considered a dangerously high heart rate?
Heart rate: Normally heart rate responds to exercise or physiologic demand levels. Usually we don't see it go over 180-200 even with high levels of exercise. This level while tolerated by 'normals' may be dangerous in patients with heart disease or other forms of disease. In other words, one number doesn't fit all. ...Read more
22
Hoping you can tell me, is high heart rate dangerous?

How high?: High heart rate more than 100 beats per minute can be a sign of lack of physical conditioning, endocrine disease like hyperthyroidism, sign/symptom of heart disease, dehydration, lung disease like asthma/copd, drug induced like to much caffeine/ energy drinks, chronic disease like liver and renal insufficiency, etc. You need a history and physical to evaluate the reason. ...Read more
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23
At what point does a high heart rate during exercise become dangerous? Would an extremely high heart rate of 250-270bpm be considered dangerous?
Maximum: Maximum predicted heart rate is calculated as 220-age. For a 22 year old the maximum heart rate is therefore 198 bpm. If your heart rate reaches 250-270 during exercise, it would be best to get evaluated. ...Read more
24
My heart rate was 180bpm òn a monitor when I was walking it was sinus rhythm causes? And would it be dangerous to exercise with this high heart rate?

Ok: 180 is a little fast for walking but at your age is fine to exercise with this heart rate ...Read more
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25
What can cause high heart rate?

PALPITATIONS W/U: Palpitations that are symptomatic deserve a prompt W/U: exam/labs especially TFTS/EKG/Event Monitor/ECHO andThe discussion of treatment options with your doctor. While you are waiting eliminate caffeine focus on staying hydrated. If palpitations worsen or syncope develops go directly to the ER stick to a GF diet WholeApproach.com gutbliss.com ...Read more
26
How to deal with high heart rate?

Depends : On the underlying cause. There are many factors that are involved in causing a high heart rate. You need to be evaluated by your doctorand at least have an ECG done for starters. ...Read more
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27
What factors cause high heart rate?

Tachycardia: Many factors. Normal - regular 60-100bpm. Normally sinus node HR is 60-100; junctional 70-110; ventricular ~ 36 bpm. Any abn focus can lead to irregular rhythms such as A.fib/flutter, sinus tahcycardia, ventricualr tachycardia to name a few. Abnormal cardiac focus - Afib; metabolic/endocrine - thyroid, infections; CA; substance abuse; anxiety; congenital abn are some. ...Read more
28
Help! Is 200 too high heart rate while exercising?

Depends: If it gradually returns to normal afterward, it was likely normal (you state your age is 32 - predicted estimated peak HR for your age is 192 but 200 is reasonable). If it stays at 200 after exercise, then suddenly falls (for instance to 110), it was an abnormal rhythm. ...Read more
29
Does high heart rate during excercise cause rabdomyolosis?

No: Rhabdomyolosys is a muscle injury direct or indirect. It result in breakdown of muscle fibers and release of their contents into the bloodstream. In an untrained athlete, excessive exercise can cause extreme muscle strain or a heat stroke causing tachycardia as a cause of the process. Rhabdo will occur because of the muscle breakdown not the tachycardia. Hydration and training very important. ...Read more
30
High heart rate up to 198 with cardio, should I be concerned?

High HR: No concerns you are exercising over the 80% of the predicted hr for your age. ...Read more
31
What is considered a high heart rate for a 35 year old female?

High or max?: Maximum normal HR for a 35 yo female is in the range of 185. This is the rate one could expect to achieve under maximal load/workout. In general, a resting heart rate would be ...Read more
32
What kind of damage can a high heart rate cause and how fast can damage start to occur?
Depends: Temporary tachycardia ( hr > 110 bpm) is not dangerous; however if tachycardia persists for over 1-2 months one can start to develop a tachycardia induced cardiomyopathy (heart failure). ...Read more
33
I have a very high heart rate when exercising
Avg. 174
Max 184
Should I see someone, or is this normal?

At your age it is: possible to achieve a maximal heart rates of 196 BPM so it sounds like you are in the normal range but perhaps pushing yourself a little too hard with your routine. Take it a little easier on yourself. Aim for sustained HR of 85% (167 BPM) for 20 minutes with an appropriate warm up and cool down for 10 minutes on each side. ...Read more
34
The past two nights I have had a high heart rate plus I feel very hot, eventually it goes down to the 80s but stays at 117 for awhile, I feel fine in?
These are not normal: feelings or findings. It will not be possible to diagnose you over the internet but there is clearly something wrong. You need to be examined and have lab work done. Make an appointment with a health care provider as soon as possible. ...Read more
35
Can a high heart rate cause a headache?

Possibly: If the rapid heart rate sufficiently raises your blood pressure a headache can be produced. Accelerated heart rates can be caused by other primary cardiac arrhythmias, overactive thyroid, anemia, caffeine, nicotine,alcohol,certain medications or anxiety. Your physician can evaluate you and order appropriate tests. ...Read more
37
Low creatinine and high heart rate, should I be concerned?

depends: There's no level of creatinine that's considered harmfully low. High heart rate is harmful if it's abnormally fast. At rest, yours should be. ...Read more
38
I'm really scared. I have a high heart rate of about 100 to 120 and it won't slow down. Should i be worried? Er

No emergency: No. There is no reason to be scared and there is no reason to go to the er. If a fast heart rate is the only symptom you have then you can wait for a bit. Your school nurse or you family doctor may be able to help you figure this out. ...Read more
39
High heart rate 100-135 and dizziness when it happens. What should I do? It comes and goes only . It's been like this over a month.

Longer: this needs a more complete Hx & PE. Something is not right here. See MD. If near Hartford CT, see me. HRS, MD, FACC 860-549-3444 if you wish to schedule. ...Read more
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40
Since i was a child, I have a high heart rate (around 100bpm) at rest.This can cause me future problems? During workout i reach 180bpm.

High: U should be cn by a cardiologist 2 find the underlying cause. Don't ignore this it is serious & u need 2 be evaluated & find out the reason. U r young with many years ahead of u. ...Read more
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