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Will epinephrine increase cardiac output

A 33-year-old member asked:
Dr. Louis Grenzer
54 years experience Cardiology
Yes: It makes the heart contract more forcefully and makes it beat faster. Both effects will increase the cardiac output.
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A 47-year-old member asked:
Dr. Calvin Weisberger
50 years experience Cardiology
Epinephrine: Epinephrine remains a component of the ACLS training by American Heart Association. Measuring 'how' effective it is, is difficult. It is generally con ... Read More
A 37-year-old member asked:
Dr. Calvin Weisberger
50 years experience Cardiology
Theory: If you assume epi is alpha-beta stimulator and nonselective beta blocker blocks both types of beta, then pure alpha stimulation without beta stimulati ... Read More
A 56-year-old member asked:
Dr. Dennis Clifford
42 years experience Pulmonary Critical Care
Yes: If asystole is present, acls recommends a trial of epinephrine. Asystole refers to an arrest where there is no electrical activity in the heart that c ... Read More
A 38-year-old member asked:
Dr. Mark Rasak
32 years experience Cardiology
Yes: Thyroid medicine or suplements will increase heart rate and thus increase cardiac output.
A 44-year-old member asked:
Dr. Louis Grenzer
54 years experience Cardiology
Not expected to: Acetylcholine (parasympathetic nervous system) should have the opposite effect from Epinephrine (sympathetic nervous system) and therefore should slow ... Read More
A 47-year-old member asked:
Dr. Francis Uricchio
37 years experience Cardiology
They don't: Cardiac output is the product of heart rate and stroke volume. Beta blockers decrease heart rate and the strength of contraction (contractility). Thus ... Read More
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6 thanks
A 37-year-old member asked:
Dr. Bart Denys
38 years experience Cardiology
Fever: Yes! provided that you have a normal heart. Fever increases your basal metabolism. For every 10 degree celsius, metabolic demands increase by the powe ... Read More
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2 thanks
A 46-year-old member asked:
Dr. Louis Grenzer
54 years experience Cardiology
Two ways: Either by pumping out more blood with each beat (by squeezing harder) or by beating faster. The output is the heart rate times the stroke volume. (the ... Read More
A 47-year-old member asked:
Dr. Francis Uricchio
37 years experience Cardiology
They don't: Beta blockers do not increase cardiac output. If anything, they reduce cardiac output by reducing heart rate and the strength of contraction (contrac ... Read More
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A 47-year-old member asked:
Dr. Samuel Hahn
27 years experience Cardiology
It doesn't: In a physiologic model, increased blood pressure or "hypertension" or increased "afterload" tends to decrease cardiac output. In a complete animal or ... Read More
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A 56-year-old member asked:
Dr. Carlos Orrego
27 years experience Cardiology
Cardiac reserve: It is the difference between resting and maximum cardiac output, so 4 L/min
A 55-year-old member asked:
Dr. Calvin Weisberger
50 years experience Cardiology
Cardiac Output: This is the amount of blood the heart pumps. If it decreases but is still adequate for the demands of the body, nothing much will happen. If it decrea ... Read More
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A 42-year-old member asked:
Dr. Calvin Weisberger
50 years experience Cardiology
Cardiac Output: This is the amount of blood the heart pumps. If it decreases but is still adequate for the demands of the body, nothing much will happen. If it decrea ... Read More
A 42-year-old member asked:
Dr. Quang Nguyen
Specializes in Endocrinology
Binding receptors: Do you mean how does it increase heart rate? The mechanism of action is quite complicated but in simple term, it binds to the beta adrenergic recepto ... Read More
A 26-year-old male asked:
Dr. William Jenkins
Specializes in Anesthesiology
Normally your: Heart is slowed by the vagus nerve, removing the vagus effect increases your rate then the catecholamines take over for further increase
A 47-year-old member asked:
Dr. Bennett Werner
43 years experience Cardiology
SVxHR=CO: You can count your heart rate by taking your pulse. That's the easy part. To get SV, you can do an echo to estimate it or do a right heart catheteriza ... Read More
A 42-year-old member asked:
Dr. Sergio Schabelman
47 years experience Cardiology
Exercise increase CO: Exercise increases cardiac output as it usually increases both heart rate(hr) and stroke volume (sv) (amount of blood ejected by the heart in each be ... Read More
A 39-year-old member asked:
Dr. Clarence Grim
56 years experience Endocrinology
Resp rate TV: Yes. Good discussion at wikipedia
A 53-year-old member asked:
Dr. Mark Stern
45 years experience Cardiology
It lowers it: Vasoconstriction increases the resistance to flow. This is called an afterload. It is like a pump having to pump water up a steep hill; it won't pump ... Read More
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A 26-year-old female asked:
Dr. Bennett Werner
43 years experience Cardiology
Venoconstriction?: Cardiac output is inversely proportional to total peripheral resistance (which is related to mean arterial pressure.) venoconstriction refers to the v ... Read More
A 40-year-old member asked:
Dr. Michio Abe
25 years experience Internal Medicine
Levels = volumes?: Blood levels meaning blood volumes? Cardiac output is the volume of blood being pumped by the heart per minute. It is calculated by stroke volume x he ... Read More
A 50-year-old member asked:
Dr. Irv Loh
Dr. Irv Loh answered
48 years experience Cardiology
Not directly: Cardiac output is the amount of blood flow generated by the heart over a given time frame. Potassium is a critical electrolyte for body health and ca ... Read More
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