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Why does my heart rate increase with fever?

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Patient's Query

Hi doctor,

I feel feverish for the last three days. My BP is 88/111 mmHg and heart rate is 87 to 106.

Yesterday, I got fainted after some exercise and brisk walk. I am on Azitromycin, Aviral-H 40, Delip 20 and PCM.

Hi,

Welcome to icliniq.com. Since you are feverish, it is expected to have a higher heart rate. Every 1 degree Celsius increase in temperature raises the heart rate by 10 beats per minute more than normal, and blood pressure can also be higher. In this case, your body works at full capacity trying to maintain itself and eliminate the illness at the same time, which may lead to fainting. If you have not experienced high blood pressure before, then the current situation may be the cause. It is important to see your primary doctor for a physical examination.

Regardless, I recommend staying home and getting plenty of bed rest. Avoid engaging in any physical activity for two to three days. Regularly monitor your blood pressure, and if it reaches high values, you can use Amlodipine 5 mg sublingual. Maintain a light diet with ample fluids and vitamins. If your temperature exceeds 38.5 degrees Celsius, take antipyretics. Please continue taking your current medication.

Medically reviewed byiCliniq medical review team
Published At July 6, 2018
Reviewed AtJanuary 18, 2024

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