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Are asthma and tachycardia linked?
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Are asthma and tachycardia linked?

I am 47 years old and have had asthma for 20 years  Recently I had a viral infection (possibly H1N1) and experienced shortness of breath and rapid heart resting near 110.  My doctor had me do a stress and echocardiagram which indicated nothing was wrong and that I was in good shape.  We determined that taking Mucinex expectorant was contributing to the tachycardia. I was put on the typical 6 pack of methlyprednisolone which helped a lot and was also restricted to no exercise or cold air for 2 weeks.  I am currently only on Flovent and Flonase and they added 25 mg of Atenelol to lower my heart rate which was still occasionnally running in the high 80's and lower 90s after getting rid of Mucinex and taking prednisone.   This treatment has been successful so far.  Is the asthma causing the tachycardia or vice versa?  Will this eventually go away?  I have recently been cleared for mild exercise again - will this help the tachycardia?  Would weight loss help as well.  I hate the idea of being on a beta blocker even though I have no side effects.  

Thanks for your help.
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172023_tn?1334675884
The tachycardia and shortness of breath may be completely unrelated to your asthma.

Tachycardia can bring on a feeling of shortness of breath in some people.  Conversely, if you are short of breath from mild hypoxia (can be associated with asthma), you may be tachycardic.

Fever can also cause tachycardia, which can make you feel short of breath.

If your asthma is well controlled and you continue to have tachycardia and feel breathless, you should see your doctor again to delve further into your symptoms and causes for them.

As an aside, if you are overweight, and or not physically active, cardiac deconditioning can play a major role in tachycardia and shortness of breath.  If you are not accumstomed to exercise and are unsure about safe ways to lose weight, see your doctor for professional advice.

Good luck!
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144586_tn?1284669764
Tachycardia is common in asthmatics. The oxygenation is measured by two sensors, one in each carotid artery. When the available lung surface in the alveoli is compromised, by either decreased efficiency due to mucus or constriction, there is less transfer of oxygen to the red blood cells with every breath. The body responds by increasing the breath rate and speeding up the heart so more blood will pass across the membranes per unit time. Mucinex should not be contributing to the tachycardia. I don't doubt your statement, but there is no logical reason for this. Albuterol sulfate will sometimes contribute to tacycardia. I disagree with meds to lower the heart rate because the increased heart rate is a means to compensate for lack of oxygen, and a rate in the high nineties is by no means life-threatening. Mind you, I am a minority of one in this opinion. To use a drug because your heart rate is in the "high eighties" or "high nineties" is, in my opinion, the wrong train, wrong track, wrong direction.
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Avatar_n_tn
Thanks caregiver, the oxygen thing feels like my experience exactly!  I often feel best when exercising or when I am outside where it feels like I can get more air.  I go back to the doc in 2 months to rediscuss the meds.  I don't know about others but when my heartrate gets 90 or above resting it does feel slightly uncomfortable, although I realize it is not life-threatening - they got my heart rate to 187 on the stress test and quite frankly I felt great - huge endorphin rush. For now 25 mg of atenelol isn't really going to hurt me much and I am really trying to be extemely careful not to contract another bug as I certainly don't want to be threatened with long term prednisone.  Any idea how long you need to go inbetween the 6 packs of  short term prednisone?  I'm scared to death of catching anything before the 1st of the year.  I have for a long time taken a multi vitamin, 1000 units of Vit. D and recently added an extra 500mg vit C daily just to stay healthier.  All my blood tests came back fine except the inital one showing a slight viral infection.

Thanks!
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168348_tn?1379360675
Hello,

WELCOME to our Community!  I'm not sure of an answer but wanted to stop by.

C~
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Avatar_f_tn
thank u . i have both asthma and tachycardia as well..and im on 25 mil 2 x a day and I have asthma..I take albutural said they counter act each other..is this true ?
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