What would cause your pulse to remain over 100bpm at rest with no history of heart disease?

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.
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.
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.

Related Questions

No hx of heart disease. Baseline 97/70. Pulse in the 80s. Ok ECG. A few times a day I feel palps. No other sx. Cause for concern?

Palpitation Sx. Palpitations are an awareness of extra heartbeats which most of us have. The sensation can be single or multiple and can sometimes last minutes. Different people may feel other symptoms along with them such as dizzy, lightheaded or short of breath. The palpitations are almost always atrial or ventricular premature beats. Usually benign but they are also found with abnormal hearts. Read more...

21 y/o active female. Resting hr around 100bpm. Resting BP averages 105/68. History of heart disease in my immediate family. Average weight, occasional fainting spells. Should I get checked?

YesPrimarilyDrivers. I have answered similar questions many time on healthtap. While atherosclerosis typically begins later childhood, your stated age, sex, low normal BP & no smoking are best odds of not yet having advanced disease. Yet best check & optimize lipoproteins(nmr particle test), LDL (?700 umol/l), large HDL (?9 umol/l), hba1c ?5.0%, hflc, consider event monitor for potential arrhythmia basis for fainting. Read more...
Fainting . Probably ok but fainting of concern, certainly wouldn't hurt to get checked out. Read more...

How do I know if I have heart disease. My pulse is thirty points higher due to antipsychotics. It never goes back down?

Side effects. Tachycardia is a common side effect of this type of medication, and doesn't indicate heart disease. If you are concerned, ask your doc. A good history of your symptoms and examination may be enough. Read more...

Is it possible that I have peripheral heart disease (leg pain when resting) without claudication?

PVD. Peripheral vascular disease is related to the systemic circulation and technically isn't 'heart disease'. It is vascular disease albeit the heart is an essential part of the vascular system. Claudication is a symptom produced when the vascular disease is severe enough to cause it. Many people have pvd, they don't all have claudication. Read more...
Its unlikely. I think you are talking about peripheral vasc. Or arterial disease, and you usually have the symptom of claudication first. Read more...