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 Does anyone know what could cause this? Everytime I bend over at my computer, I get pounding heart?
palpitations and it makes me feel light-headed and kind of out of it and my throat feels pressure..Does anyone know what can cause this?...


 My resting heart rate has been irregular ranging from 69 to 85 in the last 10 minutes. Any idea why?
I just bought a new Polar Heart Monitoring Watch that comes with a transmitter strap goes around right below your chest and have been testing it. At any rate, I've been noticing just sitting at ...


 How long does a person live after having a stroke?
My grandmother just had a stroke,shes been at Mass General Hospital for a blood clot in her lung,but they couldnt give her blood thinners because of something wrong with one of her ateries in her ...


 Bypass Surgery Effect on Lifestyle?
I am doing a biology progect and i need to know the effect bypass surgery has on someones lifestyle? also an outline on the treatment/procedure ...


 How long can you live with treated congestive hear failure?
I was diagnosed with it a couple of weeks ago..I had a baby in Aug and had kidney failure ,and 2 heart attacks.So that is what caused it .But I am only 36 yrs old..Can I live long with heart failure,...


 troponin is a protein but is that found in the contractile tissue of striated and skeletal muscles?
has to do with heart ...


 what is that round thing called in blood pressure monitor?
What is that round ball in the blood pressure monitor thingy? like the doctors press the round thing from the blood pressure monitor the cuffs get hard?...


 Shape of my heart,how?
...


 What is the new pacemaker that heals the heart?
My dad was just telling me about a pacemaker that was recently created by either central Michigan university or michigan state university that heals the heart. What is this called? I would like to ...


 Heart Murmur and other heart problems?
I was diagnosed with a slight heart murmur when I was born but they said that it would probably go away or heal on it's own. However last year I went to a new doctor and they brought it up so ...


 Why do I get heart pains?
I'm 15 and my heart literally starts hurting like sharp pains when I get stressed or if I'm really upset. I don't know why it happens but I hate it. Does it have anything to do with ...


 Blocked heart arteries?
Earlier today I was told that my 85 year old grandfather has 90% blockage on the left side of his heart and 80% blockage on the right side. He's going into surgery the friday following next and I...


 how come the ionized fraction of calcium in blood is not incresed in hypoalbuminemia?
when we have hypoalbuminemia, the total calcium appears low, so we use the corrected calcium formula. but if the total calcium, that is the calcium bound to albumin is low, there should be increase ...


 im 16 weeks pregnant and i went to the doctor today and i heard the heart beat it was 135 per minute?
is it a BOY or GIRL?...


 What can be done in young adulthood to lower risk of neurodegenerative diseases?
What can be done in young adulthood to lower risk of neurodegenerative diseases?...


 Is my cholesterol way too high for my age? And other questions below...?
I am 30 yrs old. I weigh 280 pounds and never exercise and eat way too much red meat and not enough vegetables. I'm Italian. What I want to know is if there is a good chance of lowering it all ...


 I lift weights, am 30 y/o and just had my cpk levels come back triple the normal range?! worry?! answers?
...


 Discuss the morphology of the heart and blood flow through the heart?
...


 How does low blood pressure affect your body?
...


 wht meat is no good for heart person?
...



what effect does donating blood have on heart rate?
donating a pint of blood reduces blood volume which results in a decrease in blood pressure. what effect does donating blood have on heart rate?
                     




Julie
The equation for Cardiac output is: Cardiac output (CO) = Stroke volume (SV) X Heart rate (HR). By decreasing your blood volume, and lower your blood pressure, it changes the equation within your arteries and heart (circulatory system) and ultimately the heart rate will increase to balance the equation. HR = CO/SV The human body is constantly trying to maintain a homeostatic state, where everything is balanced.


nothingconstant
Rating
When your blood pressure decreases your heart rate usually increases.


Benvenuto
Are you sure that that's decrease and not just an extreme case of increase?


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