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How could vasoconstriction affect cardiac output

A 44-year-old member asked:
Dr. Mark Stern
46 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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Dr. Bennett Werner
44 years experience Cardiology
Academic question: Total peripheral resistance (as measured in the cardiac catheterization laboratory) is inversely proportional to cardiac output.

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A 26-year-old male asked:
Dr. Frank Kuitems
39 years experience Internal Medicine
Yes : Yes you can call spasm of the corner arteries avoid this with significant coronary disease.
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A 29-year-old male asked:
Dr. Philip Kern
43 years experience Endocrinology
Beta blockers: B blockers are used to treat angina caused by coronary disease, and they are effective. They reduce heart rate and the workload of the heart, includin ... Read More
A 22-year-old male asked:
Dr. Bennett Werner
44 years experience Cardiology
No: It doesn't affect the coronary arteries.
A 24-year-old male asked:
Dr. Milton Alvis, jr
41 years experience Preventive Medicine
Internal controls: dominate responses, not chemistry administered from outside; despite marketing to the contrary. Medicine is low-Tech: the Hi-Tech (as embodied Soul↔M ... Read More
A 23-year-old male asked:
Dr. David Krulak
23 years experience Family Medicine
Vasoconstriction: Cigarettes are associated with coronary artery vasoconstriction. This constriction could cause angina if combined with exercise in some people, but i ... Read More
A 24-year-old male asked:
Dr. Herman Hammerstead
A Verified Doctor answered
A US doctor answered Learn more
Not necessarily so: Here's an article witch will answer most of your questions: http://content.onlinejacc.org/article.aspx?articleid=1121737 Just like the body can't ove ... Read More
A 34-year-old member asked:
Dr. Jerry Routh
46 years experience Internal Medicine
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 f ... Read More
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2 thanks
A 31-year-old member asked:
Dr. Carlos Orrego
28 years experience Cardiology
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 ... Read More
A 36-year-old member asked:
Dr. Frederick Tibayan
23 years experience Thoracic Surgery
Increase O2 delivery: During exercise, the muscles burn more oxygen for fuel. Increasing cardiac output increases the amount of oxygen carried by the blood to the tissues.

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