Word Finder - amniocentesis

definition

A procedure for obtaining amniotic fluid from a pregnant animal, by inserting a hollow needle through the abdominal wall and into the amniotic sac. Used in diagnosing possible genetic defects and/or obstetric complications.

If these scans give more cause for concern you may be given counseling and be offered an amniocentesis.

It also means that older mothers can be given a low risk for Down syndrome without having to undergo an amniocentesis.

One death followed amniocentesis; a few followed miscarriage or termination.

Mums-to-be are currently offered the traditional method in which a needle is inserted inside the womb (amniocentesis or chorion villus sampling ).

Procedures such as amniocentesis or chorionic villus sampling allow small amounts of the baby's cells to be removed for examination.

Testing can also be done by amniocentesis after 16 weeks gestation by removing a small amount of the amniotic fluid surrounding the baby and analyzing the cells in the fluid.

An amniocentesis may be performed in which fetal cells are removed from the amniotic fluid and enzyme activity is measured.

Amniocentesis (sampling amniotic fluid) between 20 and 24 weeks of gestation can detect toxoplasmosis in the fetus.

Fluorescence in situ hybridization (FISH)-A technique for diagnosing genetic disorders before birth by analyzing cells obtained by amniocentesis with DNA probes.

Tests such as amniocentesis and ultrasonography can determine whether a fetus is developing normally in the womb.

Prenatal genetic testing is possible through amniocentesis.

In the early 2000s, a blood test has been developed that can identify carriers of the gene for some types of albinism; a similar test during amniocentesis can diagnose some types of albinism in an unborn child.

Prenatal diagnosis of types A and B NPD can be done with amniocentesis or chorionic villi sampling.

Amniocentesis or chorionic villi sampling can be used to determine if the fetus has Tay-Sachs disease.

During pregnancy, cell samples can be collected from the fetus using amniocentesis or chorionic villi sampling.

Genetic counseling and further testing, such as chromosome analysis before pregnancy, or amniocentesis during pregnancy, may be recommended in adults with atrial septal defects.

Such monitoring may include frequent visits with the primary caregiver, tests to monitor the medical problem, blood tests to check the levels of medication, amniocentesis, serial ultrasound examination, and fetal monitoring.

Fetal heart rate monitoring may be necessary, or amniocentesis may be required.

Genetic counseling and further testing, such as chromosome analysis before pregnancy or amniocentesis during pregnancy, may be recommended in adults with congenital cardiovascular defects.

This can be accomplished using procedures such as an amniocentesis or chorionic villus sampling (CVS), after which parents can explore their options relating to the pregnancy.

When a woman is already pregnant, tests can be performed on either the cells of the fetus (amniocentesis) or the placenta (chorionic villus sampling) to determine whether the baby will have Tay-Sachs disease.

Since additional congenital defects preclude prenatal surgery, amniocentesis or chorionic villi sampling (CVS) are used to check for chromosomal abnormalities in the fetus.

An amniocentesis or chorionic villus sampling can be used to obtain fetal cells which can be analyzed for the RB1 gene change/deletion or chromosomal abnormality.

Genetic testing for and detection of the fragile X mutation can be performed on the developing baby before birth through amniocentesis, chorionic villus sampling (CVS), and percutaneous umbilical blood sampling.

For unknown reasons, amniocentesis, a prenatal test, has also been associated with clubfoot.

Amniocentesis is generally done between 15 and 22 weeks of pregnancy but can sometimes be offered earlier.

The risk of miscarriage associated with amniocentesis ranges from 0.33 to 0.5 percent.

Patau syndrome is detectable during pregnancy through the use of ultrasound imaging, amniocentesis, and chorionic villus sampling (CVS).

There is no known way to prevent Patau syndrome though it can be diagnosed prenatally via amniocentesis.

Amniocentesis is a procedure that involves inserting a thin needle into the uterus, into the amniotic sac, and withdrawing a small amount of amniotic fluid.

Amniocentesis is performed at 16 to 18 weeks of pregnancy.

It can also be done by amniocentesis after 14 weeks gestation by removing a small amount of the amniotic fluid surrounding the fetus and analyzing the cells in the fluid.

Amniocentesis is a procedure used to diagnose fetal defects in the early second trimester of pregnancy.

Since the mid-1970s, amniocentesis has been used routinely to test for Down syndrome, by far the most common, nonhereditary, genetic birth defect, afflicting about one in every 1,000 babies.

Amniocentesis, often called amnio, is recommended for women who will be older than 35 on their due-date.

Nearly half of all pregnant women over 35 in the United States undergo amniocentesis and many younger women also decide to have the procedure.

One of the most common reasons for performing amniocentesis is an abnormal alpha-fetoprotein (AFP) test.

Amniocentesis is generally performed during the 16th week of pregnancy, with results usually available within three weeks.

The word amniocentesis literally means "puncture of the amnion," the thin-walled sac of fluid in which a developing fetus is suspended during pregnancy.

Almost all obstetricians are experienced in performing amniocentesis.

Most of the risks and short-term side effects associated with amniocentesis relate to the sampling procedure and have been discussed above.

Infection. Infection, although rare, can occur after amniocentesis.

Amniocentesis is recommended if such a probability occurs.

However, the predictive value of amniocentesis in diagnosing Turner syndrome varies from 21 to 67 percent.

Amniocentesis is a method of withdrawing amniotic fluid from the placenta to allow examination of fetal cell DNA shed into the amniotic fluid, helping to identify genetic mutations.

Amniocentesis can be performed at 15 to 18 weeks gestation and is associated with a one in 200 risk of miscarriage.

Potential tests include maternal serum alpha-fetal protein analysis or screening, ultrasonography, amniocentesis, and chorionic villus sampling.

This test is not a definitive indicator of a problem and is followed by more specific testing such as amniocentesis or chorionic villus sampling.

This can be done in pregnancy with prenatal testing such as chorionic villus sampling or amniocentesis.

An amniocentesis is done further along in pregnancy (from approximately 16-18 weeks) to obtain a sample of fluid surrounding the baby for testing.