Sign-in to Ask A Doctor - 24x7
OR
Sign in with Google
What Causes Fever And Increased Heart Beat While On Beta Blocker For Tachycardia?
Question: I have nonspecific tachycardia controlled with beta blocker but when I suck like with a fever even they don't control it. I am at a 110bpmwith a fever of 100 XXXX
Brief Answer:
Fever increases heart rate
Detailed Answer:
Greetings! Thank you for your question and welcome to Health Care Magic. I understand your concern.
Every time a person is a fever, there is a thermoregulatory system of the organism in the highest hierarchy of the brain. Fever acts on this brain centre which is not responsible only for fever. It also acts on heart rate and respiratory rate. Beside this action, fever is also accompanied with a hyper dynamic state of the organism, which is intermediated by a lot of inflammatory "actors" which also influence the increasing of the heart rate. Therefore, my opinion is that there is nothing to worry about. Once the fever and this flu-like state are resolved, so will the tachycardia. Also, normal heart rate figures are 60-100 beats per minute. In male population over 45 years old, in cases of hyper dynamic states, such as fever, heart rate up to 140 beats per minute is found, and totally attributed to the baseline hyper dynamic state.
With other mechanisms, there are a lot of other physiological conditions that put the organism in a hyper dynamic state and, therefore, increase (physiologically) the heart rate. Such states are: physical activity, psychological stress, consuming alcohol and caffeine-containing beverages, tobacco, normal hormonal changes that happen throughout a day etc. Bottom line, my opinion is that once the fever is resolved, your heart rate will be back into normal, satisfying figures.
I hope I was helpful. Feel free to ask follow-up questions, as I would be happy to help. Please rate the answer, if you do not have further questions.
Best regards,
Dr. Meriton
Fever increases heart rate
Detailed Answer:
Greetings! Thank you for your question and welcome to Health Care Magic. I understand your concern.
Every time a person is a fever, there is a thermoregulatory system of the organism in the highest hierarchy of the brain. Fever acts on this brain centre which is not responsible only for fever. It also acts on heart rate and respiratory rate. Beside this action, fever is also accompanied with a hyper dynamic state of the organism, which is intermediated by a lot of inflammatory "actors" which also influence the increasing of the heart rate. Therefore, my opinion is that there is nothing to worry about. Once the fever and this flu-like state are resolved, so will the tachycardia. Also, normal heart rate figures are 60-100 beats per minute. In male population over 45 years old, in cases of hyper dynamic states, such as fever, heart rate up to 140 beats per minute is found, and totally attributed to the baseline hyper dynamic state.
With other mechanisms, there are a lot of other physiological conditions that put the organism in a hyper dynamic state and, therefore, increase (physiologically) the heart rate. Such states are: physical activity, psychological stress, consuming alcohol and caffeine-containing beverages, tobacco, normal hormonal changes that happen throughout a day etc. Bottom line, my opinion is that once the fever is resolved, your heart rate will be back into normal, satisfying figures.
I hope I was helpful. Feel free to ask follow-up questions, as I would be happy to help. Please rate the answer, if you do not have further questions.
Best regards,
Dr. Meriton
Note: For further queries related to coronary artery disease and prevention, click here.
Above answer was peer-reviewed by :
Dr. Yogesh D
Answered by
Get personalised answers from verified doctor in minutes across 80+ specialties
