The serum alpha-fetoprotein (AFP) level is elevated with some malignant germ cell tumors (GCTs) especially endodermal sinus tumors; it can be used as a measure of treatment response and during follow-up after completion of chemotherapy. However, it is normally elevated during infancy. At which age does AFP physiologically fall to normal adult level?

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Question 1 of 5

The serum alpha-fetoprotein (AFP) level is elevated with some malignant germ cell tumors (GCTs) especially endodermal sinus tumors; it can be used as a measure of treatment response and during follow-up after completion of chemotherapy. However, it is normally elevated during infancy. At which age does AFP physiologically fall to normal adult level?

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 2 of 5

Prenatal exposure to cigarette smoke is associated with

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

Regarding physical growth of preschool children (3-5 years), all are true EXCEPT

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

The child begins to understand right and left by age of

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

Potential sources of mercury include all of the following EXCEPT

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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