The amniocentesis is a procedure that is realized in the pregnant women by means of the introduction of a hollow needle to come to the counterfoil across the abdominal wall to extract amniotic liquid of the sack vitelino. Later there are realized analyses of this liquid and cells.

How it is not an aggressive procedure he does not add preparations or previous studies, it is only necessary to have the full urinal bladder to have better vision with the ecógrafo.

First of all by means of the ultrasound scan the fetus is located and it is possible to see where the sack is vitelino with the amniotic liquid.
After sterilizing the skin of the abdomen, and with a small local anesthesia for the skin, a long and hollow needle interferes across the abdomen inside the counterfoil. After the end is in the sack vitelino with the amniotic liquid there is inhaled a small quantity of liquid (the quantity depends of the week of gestation).

When the local anesthesia is applied it is possible to feel the prick in the skin, on having penetrated the needle in the counterfoil, it is possible to turn to notice a pain, not intensely, in the area. On having finished the procedure, it is possible to feel certain sensation of abdominal oppression and cramps, without big intensity.

In the study of the components of the liquid and of the cells of the amniotic liquid the presence of problems can be detected in the fetus:

• Diverse chromosomal alterations.
• Syndrome of Down.
• Forked thorn.
• Anencefalia.
• Hereditary metabolic illnesses.
• Incompatibility of Rh.

NORMAL VALUES

RISKS OF THE AMNIOCENTESIS

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