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There are numerous causes of an irregular heart rate, or arrhythmia 1. According to MedlinePlus, an arrhythmia is any disorder that involves heart rate or rhythm, and may involve a heart rate that's too fast or too slow, or a heart rate that has an irregular pattern 13. Common symptoms associated with cardiac arrhythmias include skipped beats, dizziness, chest pain and shortness of breath.
If you are experiencing serious medical symptoms, seek emergency treatment immediately.
According to the Cleveland Clinic, dehydration and electrolyte imbalances in the blood can cause an irregular heart rate known as tachycardia, or the heart beating faster than usual while at rest 3. Dehydration can be caused by excessive sweating, insufficient water or fluid consumption, along with vomiting and diarrhea 3. Dehydration can be mild, moderate or severe depending on the volume of fluid lost by the bodyl when severe, it can be life-threatening 3. According to the Merck Manual, potassium is one of the body's most important electrolytes, and a low potassium level can cause arrhythmias. In people who take digoxin, a drug used to treat heart failure, abnormal heart rhythms may develop when the body's potassium levels are only moderately low.
Coronary Artery Disease
Heart Problems Related to Breathing
According to the Merck Manual, the most common causes of arrhythmias are heart disorders such as heart valve disorders, heart failures and coronary artery disease. Coronary artery disease is a condition in which plaque builds up on the inside of the coronary arteries' walls, limiting the amount of oxygenated blood getting to the heart. FamilyDoctor.org states that coronary artery disease-induced arrhythmias can be treated and controlled with bypass surgery.
Congenital Heart Defects
According to a 2007 article published in the journal "Circulation," by the time a patient with congenital heart disease becomes a teenager, an irregular heart rate or rhythm typically becomes a central issue in his cardiac management.
Heart Problems Related to Breathing
Abnormal Heart Beat and Shortness of Breath
Low Potassium and Adrenal Glands
Causes of Low Blood Oxygen Levels
Potassium and Congestive Heart Failure
Benicar & Potassium
High or Low Potassium Levels & Bradycardia
How to Treat Seeing Stars After Bending Over
Metoprolol & Potassium Chloride
Low Potassium and Magnesium Levels
- MedlinePlus: Arrhythmia
- Cleveland Clinic: Management of Arrhythmias
- medlinePlus: Dehydration
- National Heart, Lung, and Blood Institute. Arrhythmia
- Cleveland Clinic. Arrhythmia. Updated March 8, 2018.
- Mayo Clinic Staff. Heart Arrhythmias. Mayo Clinic. Updated December 27, 2017.
- National Heart, Lung, and Blood Institute. Arrhythmia. National Institutes of Health. U.S. Department of Health and Human Services.
Martin Hughes is a chiropractic physician, health writer and the co-owner of a website devoted to natural footgear. He writes about health, fitness, diet and lifestyle. Hughes earned his Bachelor of Science in kinesiology at the University of Waterloo and his doctoral degree from Western States Chiropractic College in Portland, Ore.