What is the normal range of cardiac output?

The normal range of cardiac output in a healthy adult at rest is generally recognized to be between 4 to 8 liters per minute, with the average being around 5 to 6 liters per minute. Therefore, the value of 5-10 L/min offered in the answer choice encompasses the expected normal physiological range, acknowledging some variability due to factors like exercise, body size, and overall health of the individual.

The cardiac output can fluctuate considerably based on a person’s activity level. During vigorous exercise, for example, the output can increase significantly to meet the heightened metabolic demands of the body. Thus, understanding that the normal baseline value often quoted as 5 to 6 L/min can indeed extend up to about 10 L/min under certain conditions is essential in clinical practice. This knowledge is relevant for professionals interpreting cardiac health and function, making the selected range appropriate in the given context.