12 doctors weighed in:
What would cause your pulse to remain over 100bpm at rest with no history of heart disease?
12 doctors weighed in

Dr. Matt Malkin
Anesthesiology
8 doctors agree
In brief: Long list
Dehydration, caffeine, anxiety, anemia, high thyroid hormone levels are a few.
Meds like albuterol can also. Amphetamines can cause tachycardia for over a day. It sounds like you might be most concerned with arrythmias like atrial fibrillation, flutter or others. Your physician will evaluate possible causes and treat or refer you to a specialist.

In brief: Long list
Dehydration, caffeine, anxiety, anemia, high thyroid hormone levels are a few.
Meds like albuterol can also. Amphetamines can cause tachycardia for over a day. It sounds like you might be most concerned with arrythmias like atrial fibrillation, flutter or others. Your physician will evaluate possible causes and treat or refer you to a specialist.
Dr. Matt Malkin
Dr. Matt Malkin
Thank
Dr. Jennie Law
Internal Medicine - Endocrinology
3 doctors agree
In brief: Many things
Dehydration, excessive thyroid hormone, anemia.
..

In brief: Many things
Dehydration, excessive thyroid hormone, anemia.
..
Dr. Jennie Law
Dr. Jennie Law
Thank
Dr. Kavitha Gudur
Internal Medicine
In brief: Fast heart rate.
Please check that you are not running a fever or getting dehydrated.
Also depends on your age and your general medical condition. Would be a good idea to get checked for anemia, thyroid problems & other infections. Your doctor would do an ekg and holter monitor if this has been going on for a while depending on a detailed history.

In brief: Fast heart rate.
Please check that you are not running a fever or getting dehydrated.
Also depends on your age and your general medical condition. Would be a good idea to get checked for anemia, thyroid problems & other infections. Your doctor would do an ekg and holter monitor if this has been going on for a while depending on a detailed history.
Dr. Kavitha Gudur
Dr. Kavitha Gudur
Thank
Dr. Abraham Fakhouri
Family Medicine
In brief: Many Factors
Hi nikki, tachycardia or an elevated heart rate can be caused by multiple different factors including thyroid problems, anxiety/stress, and heart disease even without a history of heart disease.
If your heart rate remains elevated for several minutes, it is vital that you visit an emergency department quickly.

In brief: Many Factors
Hi nikki, tachycardia or an elevated heart rate can be caused by multiple different factors including thyroid problems, anxiety/stress, and heart disease even without a history of heart disease.
If your heart rate remains elevated for several minutes, it is vital that you visit an emergency department quickly.
Dr. Abraham Fakhouri
Dr. Abraham Fakhouri
Thank
Get help from a real doctor now
Dr. Steven Seres
Board Certified, Internal Medicine
17 years in practice
497K people helped
Continue
108,000 doctors available
Read more answers from doctors