A nurse is providing prenatal education to a client in the first trimester regarding the prevention of neural tube defects.
The client expresses difficulty taking pills and vitamins and currently takes only a chewable multivitamin.
Which supplement is the most important for the client to take?
Calcium.
Iron.
Folic Acid.
Magnesium.
The Correct Answer is C
Choice A rationale
Calcium is a vital mineral for fetal bone and tooth development. It also plays a crucial role in maintaining maternal bone density. The normal range for serum calcium is approximately 8.5 to 10.2 mg/dL. While important, a deficiency is typically not associated with severe congenital anomalies like neural tube defects.
Choice B rationale
Iron is essential for the production of hemoglobin, which carries oxygen to both the mother and the fetus. Iron deficiency can lead to maternal anemia, causing fatigue and increasing the risk of preterm delivery and low birth weight. The normal range for hemoglobin is 12 to 16 g/dL for women. While very important, it is not the primary nutrient for preventing neural tube defects.
Choice C rationale
Folic acid, a B vitamin, is critically important for the prevention of neural tube defects (NTDs), such as spina bifida and anencephaly, which can form early in gestation, often before a woman knows she is pregnant. Folic acid is essential for proper cell growth and DNA synthesis, which are fundamental processes in the development of the fetal central nervous system.
Choice D rationale
Magnesium is a mineral that plays a role in numerous bodily functions, including muscle and nerve function, blood glucose control, and blood pressure regulation. Normal serum magnesium levels are 1.7 to 2.2 mg/dL. While a deficiency can lead to complications, it is not the primary nutrient for the prevention of neural tube defects.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Cesarean section is the most effective intervention to prevent neonatal transmission of HSV when a mother has active genital lesions at the onset of labor. This delivery method prevents the neonate from coming into contact with the infected secretions in the birth canal, significantly reducing the risk of viral transmission which can cause severe, disseminated disease in the newborn.
Choice B rationale
Early induction of labor does not eliminate the risk of transmission because the baby would still pass through the infected birth canal. The presence of active lesions during labor poses a significant risk of viral shedding and subsequent neonatal exposure, which is only effectively bypassed by a cesarean section to avoid that route of delivery.
Choice C rationale
Delaying delivery is contraindicated and not a feasible option as it could put both the mother and fetus at risk. The presence of active lesions indicates viral shedding, and delaying delivery would not guarantee lesion resolution, thus still requiring a cesarean section to prevent exposure. This approach does not mitigate the risk and may introduce further complications.
Choice D rationale
Vaginal delivery in the presence of active lesions, even with antiviral medication, is not considered safe. Antiviral medications can reduce the viral load and the frequency of outbreaks but do not eliminate the risk of transmission during an active outbreak. The primary mode of transmission is direct contact with the lesions in the birth canal. .
Correct Answer is ["200"]
Explanation
Step 1 is: 300 ml ÷ 90 min × 60 min/hr.
Step 2 is: 3.333333333 ml/min × 60 min/hr.
Step 3 is: 200 ml/hr. Answer: 200
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