A nurse is counseling a woman about prenatal vitamins and focuses on the need for folic acid intake. Which disorder is a potential consequence of inadequate folic acid intake?
Down syndrome
Cerebral palsy
Neurofibromatosis
Spina bifida
The Correct Answer is D
Spina bifida is a birth defect that occurs when the neural tube, which forms the brain and spinal cord, does not close properly during early fetal development. This can result in an opening in the spine that exposes the spinal cord and nerves, leading to various complications such as paralysis, bladder and bowel problems, hydrocephalus, and learning difficulties. Folic acid is a B vitamin that is essential for the formation of the neural tube and other organs in the embryo. Inadequate folic acid intake before and during pregnancy can increase the risk of spina bifida and other neural tube defects.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Marfan syndrome is a genetic disorder that affects the connective tissue, causing problems with the heart, blood vessels, eyes, bones, and joints. It is caused by a mutation in the FBN1 gene, which encodes for a protein called fibrillin-1. Marfan syndrome follows an autosomal dominant pattern of inheritance, which means that only one copy of the mutated gene is needed to cause the disorder. A person with Marfan syndrome has a 50% chance of passing on the mutated gene to each child, regardless of the gender of the parent or the child.
Correct Answer is C
Explanation
Vitamin B12 is a water-soluble vitamin that is involved in the production of red blood cells, DNA synthesis, and nerve function. Vitamin B12 deficiency can cause anemia, neurological problems, and cognitive impairment. Vitamin B12 deficiency can be attributed to alcoholism because alcohol interferes with the absorption and metabolism of vitamin B12 in the stomach and liver. Alcohol also damages the lining of the intestines, where vitamin B12 is absorbed from food sources.
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