Editing Selective reduction (section)

==Procedure==
The reduction procedure is generally carried out during the first trimester of pregnancy.  The procedure often takes two days; the first day is for testing, and the procedure happens on the second day. The fetuses are evaluated, first by [[Abdominal ultrasonography|ultrasound]], then often by [[amniocentesis|testing the amniotic fluid]] and [[chorionic villus sampling]]; these tests help determine which fetuses are accessible for the procedure, and whether any fetuses are unhealthy. Once the specific fetuses to be reduced are identified, [[potassium chloride]] is injected into the heart of each selected fetus under the guidance of ultrasound imaging; the heart stops and the fetus dies as a result. Generally, the fetal material is reabsorbed into the woman's body.<ref name=Evans2014/>