# A client at average risk for a neural tube defect is planning pregnancy. The client has no prior neural-tube-defect-affected pregnancy, family history, or folate-antagonist medication use. Complete the prevention statement. > source: MyMerci (mymerci.kr) > url: https://mymerci.kr/pages/nclex_q.php?qn_id=396059&lang=en > language: en > subject: Health Promotion/Disease Prevention > category: HPM ## Question A client at average risk for a neural tube defect is planning pregnancy. The client has no prior neural-tube-defect-affected pregnancy, family history, or folate-antagonist medication use. Complete the prevention statement. The nurse should recommend ::선택::4 mg of folic acid once each week0.4 to 0.8 mg (400 to 800 micrograms) of folic acid each dayvitamin A 10,000 units each dayiron 325 mg only after pregnancy is confirmed, beginning ::선택::after the first trimester is completeonly when a pregnancy test becomes positiveat least 1 month before conceptionon the day labor begins and continuing through ::선택::the first 2 to 3 months of pregnancythe day of conception onlyone week after conceptionthe postpartum period only. ## Explanation For people who plan to or could become pregnant and are at average risk, the USPSTF recommends a daily supplement or multivitamin containing 0.4 to 0.8 mg (400 to 800 micrograms) of folic acid. The critical period begins at least 1 month before conception and continues through the first 2 to 3 months of pregnancy, when neural tube development occurs early. This average-risk dose should not be automatically substituted for individualized management of a person with a prior neural-tube-defect-affected pregnancy or another high-risk factor. ## In-depth explanation Correct Answer Take 0.4 to 0.8 mg (400 to 800 micrograms) of folic acid daily, beginning at least 1 month before conception and continuing through the first 2 to 3 months of pregnancy. Why It Fits Neural tube closure occurs very early, often before pregnancy is recognized. Daily preconception supplementation creates adequate folate availability during the critical developmental window. Clinical Picture The nurse first confirms that the client is average risk. A prior neural-tube-defect-affected pregnancy, certain medications, or other high-risk factors require individualized clinician guidance rather than automatic use of the average-risk pathway. Memory Link 400 to 800 micrograms daily; start 1 month before; continue through early pregnancy. NCLEX Rule Prevention starts before the expected exposure or developmental event. Do not wait for a positive pregnancy test when the protective window has already begun. Why the Alternatives Fail Starting after the first trimester misses the critical early period. Weekly dosing is not the recommended schedule. A routine 4 mg dose is not the standard average-risk recommendation and should not be selected without a high-risk indication and individualized plan. Source 1USPSTF Folic Acid Clinician Summary 2USPSTF Evidence Summary 32026 NCLEX-RN Test Plan ## Clinical scenario The nurse reviews diet, supplements, medications, pregnancy plans, and factors that could place the client at higher risk. This client fits the population covered by the current USPSTF average-risk recommendation. ## Key concepts - **Folic acid** — The supplemental form of folate used before and during early pregnancy to reduce the risk of neural tube defects. - **Neural tube defect** — A congenital condition caused by incomplete closure of the embryonic neural tube, affecting the brain, spinal cord, or surrounding tissues. - **Preconception care** — Health assessment and preventive care provided before pregnancy to reduce modifiable risks and prepare for a healthy pregnancy. ## Related questions - [A 6-month-old infant is brought to the well-child clinic for routine vaccinations. The par…](https://mymerci.kr/pages/nclex_q.php?qn_id=363351&lang=en) - [A 70-year-old adult with COPD has no prior RSV vaccine and an unknown pneumococcal conjuga…](https://mymerci.kr/pages/nclex_q.php?qn_id=393386&lang=en) - [A client who may become pregnant asks how to reduce the risk for neural tube defects. 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