Congenital Heart Diseases in Fetal Development
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Questions and Answers

What is the primary cause of congenital heart diseases according to the text?

  • Maternal diseases, Lupus, Diabetes
  • Teratogens and exposure time
  • Unknown in most cases (correct)
  • Chromosomal abnormalities
  • Which of the following is NOT mentioned in the text as a potential cause of congenital heart diseases?

  • Radiation exposure (correct)
  • Thalidomide
  • Retinoic acid
  • Lithium
  • What is the significance of the 'periconception period' mentioned in the text?

  • It is the time period when fetal echocardiography is performed
  • It is the time period when chromosomal abnormalities can occur
  • It is the time period when the mother should avoid teratogens (correct)
  • It is the time period when the fetal heart develops
  • What is the role of fetal echocardiography according to the text?

    <p>It can diagnose congenital heart diseases during prenatal examination</p> Signup and view all the answers

    What percentage of congenital heart diseases are associated with chromosomal abnormalities according to the text?

    <p>25-30%</p> Signup and view all the answers

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