One of the Challenges Associated with the Successful Use of Chemotherapy

question 1

Multiple Choice

 One of the challenges associated with the successful use of chemotherapy for treating brain tumors is the fact that

• A) no known chemotherapy agents are effective against the types of tumors that arise in the brain.
• B) no chemicals are ever able to pass from the blood supply to the brain.
• C) many circulating chemicals are not able to enter the brain.
• D) chemicals introduced to the brain do not pass through neural membranes.

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Definitions:

Prevalence

The percentage of people identified with a disease or condition at a given moment.

Incidence

a measure used in epidemiology to refer to the rate at which new cases of a disease or condition occur in a population over a specified period of time.

Correlation Coefficient

A statistical measure that describes the extent to which two variables change together and thus how well one variable predicts the other.

Risk

The potential for losing something of value or the possibility of an unwanted outcome.