What Is the Average Ejection Fraction for a Healthy Heart

question 38

Multiple Choice

What is the average ejection fraction for a healthy heart?

• A) 70 percent
• B) 95 percent
• C) 50 percent
• D) 90 percent

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Definitions:

Preoperational Stage

A stage in Piaget's theory of cognitive development, occurring roughly between the ages of 2 and 7, marked by rapid language acquisition and symbolic thinking.

Age

A measure of the time an individual or object has existed, often used to describe developmental stages in humans.

Egocentrism

An important feature of preoperational thought: the inability to distinguish between one’s own and someone else’s perspective.

Animism

A facet of preoperational thought: the belief that inanimate objects have lifelike qualities and are capable of action.