Which statement about Down syndrome is true?

a. It is caused by an inborn error of metabolism.
b. Often the infant has slanting eyes and low-set ears.
c. It is more common in offspring of women under age 20.
d. The mean IQ of a person with Down syndrome is about 100.


ANS: B
Infants with Down syndrome typically have slanting eyes and low-set ears. It is caused by a genetic error and is more common in mothers over age 35. IQ ranges from 25 to 70, with a mean of 50.

Nursing

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Nursing

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Nursing