#1
Which of the following is a neural tube defect?
Spina bifida
ExplanationSpina bifida is a neural tube defect.
#2
Which of the following is NOT a neural tube defect?
Cleft palate
ExplanationCleft palate is not a neural tube defect.
#3
Which of the following factors increases the risk of neural tube defects?
Advanced maternal age
ExplanationAdvanced maternal age increases the risk of neural tube defects.
#4
Which trimester of pregnancy is most critical for the prevention of neural tube defects through folic acid supplementation?
First trimester
ExplanationThe first trimester of pregnancy is most critical for preventing neural tube defects through folic acid supplementation.
#5
What is the prevalence of neural tube defects among pregnancies affected by maternal diabetes?
Higher than average
ExplanationThe prevalence of neural tube defects is higher than average among pregnancies affected by maternal diabetes.
#6
What is the primary cause of neural tube defects?
Folic acid deficiency
ExplanationFolic acid deficiency is the primary cause of neural tube defects.
#7
Which of the following neural tube defects is characterized by an absence of a major portion of the brain, skull, and scalp?
Anencephaly
ExplanationAnencephaly is characterized by the absence of a major portion of the brain, skull, and scalp.
#8
At what stage of fetal development does the neural tube typically close?
During the first trimester
ExplanationThe neural tube typically closes during the first trimester of fetal development.
#9
What is the role of folic acid in preventing neural tube defects?
It aids in the closure of the neural tube
ExplanationFolic acid aids in the closure of the neural tube, preventing defects.
#10
Which part of the nervous system does a neural tube defect affect?
Central nervous system
ExplanationA neural tube defect affects the central nervous system.
#11
Which of the following interventions has been shown to reduce the risk of neural tube defects?
Supplementation with folic acid
ExplanationSupplementation with folic acid has been shown to reduce the risk of neural tube defects.
#12
Which of the following is a prenatal screening test used to detect neural tube defects?
Maternal serum alpha-fetoprotein (AFP) test
ExplanationThe Maternal serum alpha-fetoprotein (AFP) test is used to detect neural tube defects.
#13
What percentage of neural tube defects can be prevented by adequate maternal folic acid intake?
50%
ExplanationAdequate maternal folic acid intake can prevent 50% of neural tube defects.
#14
Which of the following is a common symptom of neural tube defects in newborns?
Difficulty feeding
ExplanationDifficulty feeding is a common symptom of neural tube defects in newborns.
#15
Which of the following is a neural tube defect characterized by a protrusion of the spinal cord and its covering through a defect in the vertebrae?
Myelomeningocele
ExplanationMyelomeningocele is a neural tube defect characterized by a protrusion of the spinal cord and its covering through a defect in the vertebrae.