What could be the potential causes of occasional rapid heartbeat?

Hi,

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I have gone through your query.

It can happen due to anxiety or panic attacks, but it should be evaluated to rule out cardiac problems. This can also be due to a cardiac arrhythmia like paroxysmal supraventricular tachycardia (PSVT) or atrial fibrillation, in which the heart rate suddenly goes up and also suddenly decreases. Blood pressure falls during these episodes and one has dizziness, fainting, blackouts, and sometimes syncope. Usually, electrocardiogram (ECG) is normal as it is usually done in between the episodes. Electrocardiogram (ECG) done during episodes will show abnormality so try to get electrocardiogram (ECG) done during the episodes. Also, try to count the pulse rate or heart rate in a minute manually or with blood pressure apparatus. This will give us some idea regarding the cause. If this is not successful, you will need 24-hour holter monitoring. So you can visit a nearby cardiologist for this investigation. Also, hemoglobin and thyroid tests should be done. ln order to abort such episodes you should try to cough hard.

Hope this helps you get back if you have any doubts.

Thanks and regards.