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Fast heart rate...
 relatively rapid heart action whether physiological (as after exercise) or pathological -- see , junctional tachycardia , paroxysmal tachycardia , sinus tachycardia , ventricular tachycardia ; compare , bradycardia

Licensed from Merriam-Webster's Medical Desk Dictionary, 3rd Edition

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Fast heart rate,  63 results found that may cause your symptoms. You can add another symptom to the list above.
1. Caffeine overdose
It is a central nervous system stimulant and a diuretic, which means it increases urination.Caffeine overdose...

Symptoms:

  • Rapid breathing
  • Dizziness
  • Deep breathing
  • Feels hot to touch
  • Fast heart rate
Click to view article 2. Bleeding
Bleeding refers to the loss of blood. Bleeding can happen inside the body(internally) or outside the body(ext...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Confusion
  • Lightheadedness
  • Abdominal pain
  • Shock
  • Fast heart rate
3. Panic disorder
Panic disorder is an anxiety disorder that causes repeated, unexpected attacks of intense fear. These attacks...

Symptoms:

  • Moist skin
  • Tingling
  • Chest pain
  • Nausea
  • Fast heart rate
Click to view article 4. Hypoglycemia
Hypoglycemia is a condition that occurs when your blood sugar(glucose) is too low.Your body''s sugar(glucose)...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Different size pupils
  • Muscle pain
  • Grand mal seizure
  • Aggression
  • Fast heart rate
Click to view article 5. Atrial fibrillation/flutter
Atrial fibrillation/flutter is a heart rhythm disorder(arrhythmia). It usually involves a rapid heart rate, i...

Symptoms:

  • Tired
  • Pain
  • Bounding pulse
  • Fatigue
  • Fast heart rate
Click to view article 6. Arrhythmias
An arrhythmia is a disorder of the heart rate(pulse) or heart rhythm, such as beating too fast(tachycardia), ...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Chest pain
  • Fainting
  • Shortness of breath
  • Dizziness
  • Fast heart rate
Click to view article 7. Sepsis
Sepsis is a severe illness in which the bloodstream is overwhelmed by bacteria.Sepsis is caused by a bacteria...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Fast heart rate
  • Rapid shallow breathing
  • Rash
  • Tremor
  • Delirium
Click to view article 8. Hyperthyroidism
Hyperthyroidism is a condition in which the thyroid gland is overactive, and makes too much thyroid hormone(c...

Symptoms:

  • Infrequent periods
  • Increase in blood pressure
  • General weakness
  • No menstrual period
  • Fast heart rate
9. Adrenergic bronchodilator overdose
They are used to treat asthma and chronic bronchitis. Adrenergic bronchodilator overdose occurs when someone ...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Chills
  • Fast heart rate
  • Seizures
  • High blood pressure
  • Nausea
Click to view article 10. Dehydration
Dehydration means your body does not have as much water and fluids as it should. Dehydration can be caused by...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Abnormal urine odor
  • Headache
  • Chapped lips
  • Coma
  • Fast heart rate
This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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