Calculating heart stroke volume

Common Questions and Answers about Calculating heart stroke volume


Avatar m tn 2) It's the slow heart rhythm that makes me question if the monitor is wrong (and if it's wrong calculating the slow heart rhythm it may be wrong calculating the rapid rhythm). It's impossible to exercise with a heart rate below 50. If you're running uphill, I would guess the body needs a cardiac output of at least 15 liter/minute. That would mean that your heart would have to pump 300 ml of blood for each beat. Not even top athletes have a stroke volume above 180-200 ml, so that's impossible.
Avatar m tn CO is a product of blood volume per heart stroke and heart rate. The higher/better the stroke volume (weak, strong, stronger contractions) the fewer heart beats (more for weak, less for strong, least for stronger) are required to meet demand (held constant for illustration) for blood oxygen. A well-condition individual requires fewer heartbeats due to strong contractions. It is the stroke that determines EF...not the CO, as CO can vary by an increase or decrease of HR.
213398 tn?1202674074 The EF is one factor that maintains a balance of blood flow between left and right sides of the heart. Cardiac output is a function of stroke/volume for 1 minute. Pressure expands the left ventricle and increases preload (filling) . An increased preload increases stroke volume through the Frank Starling mechanism and that would be an increase in EF. Frank Starling mechanism can be campared to a hand spring as an analogy.
Avatar n tn I get high fevers with the common cold. I feel cold all the time. I do get heart palpitations from time to time and they just come out of know where. I do feel a tad frustrated as there is no drug for this condition. A lot of friends and family do not understand this condition as a result can never understand/relate to me feeling the way I do. #1 Always feeling tired.
Avatar n tn long story short..this episode had possibly damaged my heart and the heart attack enzyme was elevated. i had a murmur surgically repaired 27 years ago and now doctors are saying that there could be electrical problems to the heart,etc.......wanted to keep me in hospital to do a catherization that would check heart electrical impulses but i convinced my primary doc to let me do it on a outpatient basis...
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