I have a 16 year old daughter that has been having sinus tachycardia with symptoms of chest pain, dizziness, and heart rate up to 200.  This has been happening since having an upper respiratory and sinus cold in December.  We are now being told that the tachycardia could be caused from the virus in December.  Is this possible?
Hi, Thanks for writing in to Chat Doctor. Yes sinus tachycardia or arrhythmias can be caused due to severe viral infections. In such cases usually the virus affects the heart muscles causing weakening of the muscles and disruption of the electrical activity of the heart. Your child may be treated with medications that reduce the risk of heart failure and diuretics which prevent edema and medications that lower the stress on heart.Also, a low salt diet is advisable to maintain Blood Pressure. Chat Doctor. 