What Was the Most Critical Lesson About Teratogens Learned from Studies

question 53

Multiple Choice

What was the most critical lesson about teratogens learned from studies on the use of the drug DES by pregnant women? ​

• A)Sometimes what appear to be teratogens actually are harmless drugs.
• B)Infants in the late fetal period appear to be the most at risk for impact from drug-related teratogens.
• C)Sometimes the effects of teratogens are not apparent until long after exposure.
• D)Females appear to be at much greater risk from teratogens.

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Definitions:

Pupil

The opening at the center of the iris, which grows smaller or larger as the iris contracts or relaxes, respectively; it regulates the amount of light that enters the eye.

Lens

A clear, circular disc located in the eye, just posterior to the iris, that can change shape to help the eye focus images of objects that are near or far away.

Eye Safety

The practice of taking preventative measures to protect the eyes from injury, strain, or infection.

Cleaning Solutions

Mixtures or substances used to remove dirt, germs, and other contaminants from surfaces.