The vessel-rich group receives what percent of the cardiac output?

The vessel-rich group receives what percent of the cardiac output?

• A. A 45%
• B. B 60%
• C. C 75%
• D. D 90%

Answer: (C)

The main idea is how cardiac output is distributed to tissues. The vessel-rich group consists of organs with the highest blood flow per tissue mass and the greatest metabolic demand—such as brain, kidneys, liver, and heart. Because these tissues need rapid delivery of oxygen and nutrients, they receive the majority of blood flow, about three-quarters of the cardiac output, roughly 75%. The remaining blood flow goes to vessel-poor tissues like muscle and fat, which are less perfused. This distribution helps explain drug kinetics after IV administration: drugs first rapidly perfuse the vessel-rich group, producing quick onset, and later redistribute into the less-perfused tissues, contributing to redistribution and termination of effect. So the percent alignment for the vessel-rich group is about 75%.

The main idea is how cardiac output is distributed to tissues. The vessel-rich group consists of organs with the highest blood flow per tissue mass and the greatest metabolic demand—such as brain, kidneys, liver, and heart. Because these tissues need rapid delivery of oxygen and nutrients, they receive the majority of blood flow, about three-quarters of the cardiac output, roughly 75%. The remaining blood flow goes to vessel-poor tissues like muscle and fat, which are less perfused. This distribution helps explain drug kinetics after IV administration: drugs first rapidly perfuse the vessel-rich group, producing quick onset, and later redistribute into the less-perfused tissues, contributing to redistribution and termination of effect. So the percent alignment for the vessel-rich group is about 75%.