A pregnant lady came into the hospital for ANC, which medicine prescribed by on duty doctor to prevent NTD?

NORCET 2 - 2021 (shift-1)

Obstetrics & Gynaecology

Easy

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

Folic acid (Vitamin B9) is essential for DNA synthesis, cell growth, and the formation of the neural tube, which develops into the baby's brain and spinal cord.
The neural tube closes very early in pregnancy, between the 3rd and 4th week post-conception, often before a woman knows she is pregnant. This makes pre-conceptional supplementation critical.
Deficiency in folic acid during this crucial period can lead to failure of the neural tube to close properly, resulting in severe birth defects known as Neural Tube Defects (NTDs), such as spina bifida and anencephaly.
Public health initiatives, including the fortification of grains with folic acid and routine supplementation advice during antenatal care, have significantly reduced the incidence of NTDs.

Option B: Iron is primarily supplemented to prevent or treat iron-deficiency anemia in the mother and support fetal growth, not to prevent neural tube defects.
Option C: While zinc is important for overall fetal growth and immune function, it is not the specific nutrient recommended for the primary prevention of neural tube defects.
Option D: Phosphate is a mineral necessary for bone development, but it is not routinely supplemented during pregnancy for the prevention of congenital defects like NTDs. Adequate levels are typically maintained through a balanced diet.

Visual 1: Diagram - A flowchart showing the timeline of neural tube development in an embryo, highlighting the critical closure period in the first 28 days.
Visual 2: Infographic - A comparison between a healthy spinal column and one affected by spina bifida, illustrating the defect.

Clinical Relevance

Nursing practice connection: Knowing Antenatal care and prevention of Neural Tube Defects (NTDs) helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses play a crucial role in educating all women of childbearing age about the importance of folic acid supplementation even before they plan to conceive, as many pregnancies are unplanned.
During antenatal check-ups (ANC), it is a key nursing responsibility to assess for NTD risk factors (e.g., history of a previously affected child, use of antiepileptic drugs like valproic acid) to ensure the correct dosage is prescribed.
Patient counseling should emphasize that dietary sources alone are often insufficient to meet the required levels for NTD prevention, making supplementation necessary.

How to Approach the Question

First, identify the key terms in the question: 'pregnant lady', 'prevent', and 'NTD' (Neural Tube Defect).
The question asks for a specific medication to prevent a specific condition. This is a direct recall question based on standard antenatal care protocols.
Recall the primary functions of common prenatal supplements.
Associate Folic Acid directly with the prevention of neural tube defects like spina bifida.
Differentiate this from Iron, which is for anemia; Zinc, for general growth; and Calcium, for bones.
Select the option that has a direct, evidence-based link to preventing the specific defect mentioned (NTD), which is Folic acid.

Concept Tested & Keywords

Concept Tested: Antenatal care and prevention of Neural Tube Defects (NTDs)
Stem keywords: pregnant lady, ANC, prevent NTD
Lead-in keywords: which medicine
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.
Negative lead-in flag: false

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