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A nurse is collecting data from a child who is descending stairs by placing both feet on each step and holding on to the railing.

This behavior is developmentally appropriate at which of the following ages?

A.

4 years.

B.

6 years.

C.

5 years.

D.

3 years.

Answer and Explanation

The Correct Answer is D

On average, by 3 years of age, children can walk up and down stairs, one foot per step, with no support.
Choice A is incorrect because it is not developmentally appropriate for a 4-year-old child to place both feet on each step and hold on to the railing while descending stairs.
Choice B is incorrect because it is not developmentally appropriate for a 6-year-old child to place both feet on each step and hold on to the railing while descending stairs. 
Choice C is incorrect because it is not developmentally appropriate for a 5-year-old child to place both feet on each step and hold on to the railing while descending stairs.
 


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Related Questions

Correct Answer is B

Explanation

A. Lateral incisors are present:At 6 months, infants typically begin teething, but the lateral incisors usually do not appear until around 9 to 13 months. The first teeth to emerge are usually the lower central incisors.

B. Posterior fontanel is closed:The posterior fontanel, or the soft spot at the back of the baby's head, typically closes by 2 to 3 months of age. Therefore, it is expected to be closed by the time the infant is 6 months old.

C. Infant's birth weight is tripled:By 6 months, infants generally double their birth weight. Tripling of birth weight is more commonly expected by the end of the first year.

D. Infant sits well without support:Most infants begin to sit without support around 7 to 9 months. At 6 months, they may sit with some support but are not yet expected to sit well independently.

Correct Answer is D

Explanation

“Implantation occurs between two and three weeks after conception.” This statement is incorrect because implantation usually occurs about 6 to 10 days after conception.
Choice A is correct because bleeding or spotting can accompany implantation.
Choice B is correct because sperm can remain viable in the woman’s reproductive tract for 2 to 3 days.
Choice C is correct because fertilization typically takes place in the outer third of the fallopian tube.

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