Which test examines the embryo or fetus during the first 23 weeks of pregnancy by means of a fiber-optic device inserted through the cervix?

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Embryoscopy involves the insertion of a fiber-optic device through the cervix to examine the embryo or fetus during the first 23 weeks of pregnancy. Amniocentesis involves the removal of a small amount of amniotic fluid during the second trimester for genetic testing, while chorionic villus sampling (CVS) involves the removal of a small amount of tissue from the placenta for genetic testing. Sonoembryology involves the use of ultrasound to examine the developing embryo or fetus.

Which Test Examines the Embryo or Fetus During the First