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How Does Noradrenaline Affect Cardiac Output
Cardiac output: is stroke volume times heart rate. if stroke volume goes down more than heart rate goes up, cardiac output won't increase. stroke volume depends on preload (filling of the heart), afterload (resistance to flow), and contractility (how much the heart pumps for how much it is filled. For instance, if the heart rate goes up but the the heart doesn't have time to fill, output won't increase. ...Read more
Low blood pressure: Cardiac output is related to the heart rate, and volume of blood the heart can pump with each heart beat. A low cardiac output occurs when the pump function of the heart is compromised by an event such as a heart attack or when the blood volume is reduced by and event such as dehydration, or bleeding. ...Read moreSee 1 more doctor answer
Cardiac output: In strict physiologic terms, cardiac output is determined by something called stroke volume and heart rate. Heart rate is self-explanatory. Stroke volume is the amount of blood that the heart pumps out with each beat. This in turn is dependent on blood pressure, total blood volume, and how strong the heart contracts. ...Read moreSee 1 more doctor answer
In general four: Cardiac output is influence by the amount of blood the heart recieves,the resistance against which the blood is ejected,the strength of contraction and the heart rate. For ex. CO increases with heart rate,increase in blood volume,increase in cardiac contraction and less resistance to ejection because of lower peripheral resistance. Clinical conditions that affects any 4 will alter cardiac output ...Read moreSee 1 more doctor answer
CO=need: Your cardiac output will match your need. The difference between an athlete and a non-athlete is that the athlete can increase their co and reduce their need at peak exertion through conditioning and the rest of us can't. Think of a race car and an oldsmobile (both 8 cyl) traveling at 25 mph. They both use the same amount of gas but the former can go 200 mph, while the latter is sputtering at 100. ...Read more
Low cardiac output: Cardiac output depends on heart rate and stoke volume. Therefore, the cardiac output increases when heart rate goes up in normal heart. However, when the heart is failing the stroke volume is lower as well as the cardiac out which is called heart failure . Sometimes, heart failure could occur when cardiac output is high due to other medical problems such as a severe anemia , hyperthyroidism, etc ...Read more
Generally: Increases due to less resistance.Get a more detailed answer ›
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