Question: The nurse teaches a pregnant client why she needs a folic acid supplement. Which neonatal disorder does this prevent?
1. Phenylketonuria
2. Down syndrome
3. Neural tube defects
4. Erythroblastosis fetalis
Answer: 3
Rationale: A folic acid supplement (0.4 mg/day) greatly reduces the incidence of fetal neural tube defects. Options 1 and 2 are genetic disorders that cannot be prevented by the action of folic acid. Option 4 is related to the Rh factor and is not prevented by folic acid.
This week’s NCLEX exam practice question came from:
Nugent: Mosby's Review Questions for the NCLEX-RN Exam, 7th edition, Chapter 4, page 311, question 110
Check out other great NCLEX exam review resources from Elsevier!
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