A Group of Nursing Students Asks a Nurse to Explain

question 8

Multiple Choice

A group of nursing students asks a nurse to explain the blood-brain barrier. The nurse would be correct to say that the blood-brain barrier:

• A) prevents some potentially toxic substances from crossing into the central nervous system.
• B) causes infants to be less sensitive to CNS drugs and thus require larger doses.
• C) allows only ionized or protein-bound drugs to cross into the central nervous system.
• D) prevents lipid-soluble drugs from entering the central nervous system.

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Definitions:

Utility Possibilities Frontier

A curve that shows the maximum feasible amount of two goods that can be produced with available resources and technology, indicating the trade-offs and efficiency in production.

Utility

In economics, utility refers to the satisfaction or pleasure derived by consumers from consuming goods or services.

Efficient

An attribute of a market or process where resources are allocated in the most effective way, yielding the maximum benefit for a given set of resources.

Competitive Equilibrium

Competitive Equilibrium is a state where supply equals demand, market resources are efficiently allocated, and no participant in the market can influence the price of goods or services.