What is sinus tachycardia?
Sinus tachycardia is a normal increase in heart rate that happens with fever, excitement, and exercise. Sinus tachycardia is normal, but treatment may be required if it is caused by an underlying problem, such as anemia (a low blood count) or hyperthyroidism (overactive thyroid gland), or rarely, happens frequently and without a clear cause (inappropriate sinus tachycardia).
Categories