Question

In the context of amniocentesis, which of the following statements is incorrect?

• A. It is used for prenatal sex determination
• B. It can be used for the detection of Down syndrome
• C. It can be used for detection of Cleft palate.
• D. It is usually done when a woman is between 14-16 weeks pregnant

Answer 1

The correct option is C

It can be used for detection of Cleft palate.

The correct option is C.

Explanation for correct option:

1. Between the sixth and ninth weeks of pregnancy, the palate (the roof of the mouth) begins to develop.
2. When the tissue that makes up the roof of the mouth does not fully fuse together during pregnancy, a cleft palate develops.
3. Accurately diagnosing a cleft lip may get simpler as the foetus continues to develop.
4. When a cleft palate develops on its own, ultrasonography imaging is more challenging.
5. Cleft palate is caused by both genetic and environmental factors and can not always be detected using amniocentesis.

Explanation for incorrect options:

Option A:

1. Amniocentesis is used to determine the sex of the fetus between the 14-16th week of gestation.
2. In the method, the amniotic fluid is obtained from the amniotic sac with the help of a needle under the guidance of ultrasound.
3. This test is basically used to detect chromosomal abnormalities and metabolic disorders in the developing fetus.
4. It can be used for fetal sex determination also.

Option B:

1. A prenatal test called amniocentesis can identify genetic diseases (such as Down syndrome and spina bifida) and other health problems in an unborn child.
2. A tiny amount of amniotic fluid from inside your uterus is extracted using a needle by a healthcare professional, and the sample is subsequently examined in a lab for particular diseases.
3. If a baby has Down syndrome, a diagnostic test (such as chorionic villus sampling or amniocentesis) will reveal this.
4. A blood sample may be used for chromosomal testing after the baby is born to confirm the presence of Down syndrome.

Option D:

1. Amniocentesis is usually done after the 14th week of gestation.
2. Amniocentesis can provide information about your baby's genetic makeup.
3. Genetic amniocentesis is usually done between weeks 15th and 20th of pregnancy.
4. Amniocentesis done before week 15 of pregnancy has been associated with a higher rate of complications.

Final answer: In the context of amniocentesis, the “it can be used for detection of Cleft palate” statement is incorrect.