Sameen is 20 weeks pregnant. Her doctor came to know that she has a family history of Down's syndrome.The prenatal diagnostic test that the doctor would recommend her to check the presence of this disease in the baby is:
Correct answer: C. Amniocentesis
- A. X-ray
- B. Ultrasound
- C. Amniocentesis
- D. Complete Blood Count
Explanation
The correct answer is amniocentesis. This procedure involves extracting a small amount of amniotic fluid, which contains fetal cells, to analyze for chromosomal abnormalities such as Down's syndrome. While an ultrasound is used to visualize the fetus's physical development, it is not a diagnostic tool for chromosomal disorders. An X-ray is not suitable due to radiation exposure and its ineffectiveness in diagnosing such conditions. A complete blood count is unrelated to chromosomal testing and focuses on blood cell levels.
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