What causes fast heart rate? 71 possible conditions

Viewing 1 - 20 of 71 results

See a list of possible causes in order from the most common to the least.

1

Fast heart rate

The heart rate, usually measured by checking the arterial pulse or sounds counting the times of the heart beat, is considered one of the vital signs. Vital signs – body temperature, pulse, breathing rate, an...

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2

Caffeine Overdose

You're at risk for caffeine overdose when you ingest more than 200 to 300 mg of caffeine (about three 8-oz cups of coffee) in a day. Dizziness, diarrhea, headache, and severe thirst may occur.

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3

Bleeding

This condition is considered a medical emergency. Urgent care may be required.

Bleeding can refer to blood loss inside the body (internal bleeding) or blood loss outside of the body (external bleeding). It can cause bruising, pain, and symptoms of shock. Too much bleeding can lead to death.

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4

Panic Disorder

Panic disorder occurs when you live in fear of having a panic attack. You are having a panic attack when you feel sudden, overwhelming terror that has no obvious cause. You may experience physical symptoms such as ...

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5

Low Blood Sugar (Hypoglycemia)

This condition is considered a medical emergency. Urgent care may be required.

Also known as hypoglycemia, low blood sugar can be a dangerous condition. Hypoglycemia is rare in people who are not suffering from diabetes, the chronic disease that affects the body's ability to regulate blood sugar...

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6

Atrial Fibrillation and Flutter

Atrial fibrillation and atrial flutter are irregular heart rhythms that occur when the upper chambers of your heart (the atria) beat too fast.Atrial fibrillation can be sustained or can occur in bursts. It creates a...

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7

Abnormal Heart Rhythms

This condition is considered a medical emergency. Urgent care may be required.

An abnormal heart rhythm (arrhythmia) is a change in the heart's beating pattern. There are many different types with different causes and effects. Possible symptoms are feeling faint, chest pain, and sweating.

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8

Sepsis

This condition is considered a medical emergency. Urgent care may be required.

One life-threatening complication of infection is sepsis, which often occurs in people who are elderly or have weak immune systems. Patches of discolored skin is a symptom of severe sepsis.

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9

Hyperthyroidism

The thyroid gland produces a hormone that controls how your cells use energy (metabolize). Hyperthyroidism occurs when the body produces excessive amounts, causing rapid heart rates, weight loss, and heat intolerance.

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10

Adrenergic Bronchodilators Overdose

This condition is considered a medical emergency. Urgent care may be required.

An overdose happens when you take too much of a drug. Whether intentional or accidental, drug overdoses can be life threatening. Adrenergic bronchodilators overdose is when a person has taken too much of a certain typ...

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11

Dehydration

This condition is considered a medical emergency. Urgent care may be required.

Dehydration occurs when your body loses more fluid than you drink. When the body loses too much water, organs, cells, and tissues fail to function. Dehydration can also cause shock. Severe dehydration must be treate...

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12

Abdominal Aortic Aneurysm

This condition is considered a medical emergency. Urgent care may be required.

Your aorta is the largest blood vessel in your body, carrying blood from your heart down to your abdomen, legs, and pelvis. If the walls of the aorta become weak, they can swell or bulge out. When this happens in th...

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13

Painful Menstrual Periods

Menstruation is a monthly occurrence for women in which the body sheds the lining of the uterus (womb), which is then passed through a small opening in the cervix and out through the vaginal canal. Some pain, cramping...

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14

Pulmonary Embolism

This condition is considered a medical emergency. Urgent care may be required.

A pulmonary embolism is a blood clot that affects the lungs. Typically, a blood clot travels from another area in the body before becoming lodged in one of the arteries that supply blood to the lungs. A pulmonar...

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15

Paroxysmal Supraventricular Tachycardia (PSVT)

This condition is considered a medical emergency. Urgent care may be required.

Paroxysmal supraventricular tachycardia (PSVT) is a faster-than-normal heart rate. The term paroxysmal means that it only happens from time to time. In the case of PSVT, the rapid heart rate can last from a few minute...

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16

Septic Shock

This condition is considered a medical emergency. Urgent care may be required.

Septic shock is what happens as a complication of an infection where toxins can initiate a full-body inflammatory response. It often occurs in people who are elderly or have a weakened immune system. It is thought tha...

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17

Hypovolemic Shock

This condition is considered a medical emergency. Urgent care may be required.

Hypovolemic shock is a life-threatening condition that results when you lose more than 20 percent (one-fifth) of your body's blood or fluid supply. This severe fluid loss makes it impossible for the heart to pum...

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18

The Deadly Potential of Digitalis: Digitalis Toxicity

This condition is considered a medical emergency. Urgent care may be required.

Digitalis toxicity (DT) occurs when you take too much digitalis (also known as digoxin or digitoxin), a medication used to treat heart conditions. Signs of toxicity include nausea, vomiting, and an irregular heartbeat...

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19

Cardiogenic Shock

This condition is considered a medical emergency. Urgent care may be required.

Cardiogenic shock is a state where the heart has been damaged to the point where it is unable to supply enough blood to the organs of the body. As a result of the failure of the heart to pump enough nutrients to th...

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20

Thyroid Storm

This condition is considered a medical emergency. Urgent care may be required.

Thyroid storm is a life-threatening health condition that is associated with untreated or undertreated hyperthyroidism. During thyroid storm, an individual's heart rate, blood pressure, and body temperature can soar t...

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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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