ATI RN
Pediatrics Genetics Questions
Question 1 of 5
The most common ovarian neoplasm in adolescents is
Correct Answer: B
Rationale: Teratomas (B), often benign (dermoid cysts), are the most common ovarian neoplasms in adolescents. Rationale: Malignant cancers (A) and rare tumors (C, D) are less frequent; teratomas arise from germ cells, prevalent in young females.
Question 2 of 5
All the following are the rules of X-Linked recessive Inheritance EXCEPT
Correct Answer: C
Rationale: XLR traits affect males more (A), 50% sons of carriers (B), no father-to-son (D), and carriers may show mild traits (E). Affected males pass to all daughters (carriers), not half (C is false). Rationale: X^a Y fathers give X^a to all daughters.
Question 3 of 5
All the following are features of Prader-Willi syndrome EXCEPT
Correct Answer: B
Rationale: PWS features postnatal hypotonia (not prenatal, B), obesity (C), small extremities (D), and growth delay (A). Rationale: Prenatal hypotonia is more typical of other conditions.
Question 4 of 5
The growing promising technique that is still in the research stage and being piloted in high-risk pregnancies for prenatal diagnosis is
Correct Answer: D
Rationale: Cell-free fetal DNA (D) is a promising, non-invasive prenatal test. Rationale: It detects aneuploidy from maternal blood, piloted in high-risk cases; others (A-C) are established.
Question 5 of 5
Of the following, the test /study that is required to be done periodically in persons with Down syndrome (DS) is
Correct Answer: D
Rationale: Thyroid function (D) is monitored in DS due to high hypothyroidism risk. Rationale: Congenital heart defects (C) are screened early, not periodically; thyroid issues emerge later.