Amniocentesis Testing
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Amniocentesis Testing
Amniocentesis is a method in which a fine needle is passed through the maternal abdomen and uterine wall to obtain some amniotic fluid from around the fetus. Cells within the amniotic fluid have the same genetic material as the fetus and can therefore be tested for a particular chromosomal and genetic condition.
Who is offered Amniocentesis?
Amniocentesis is provided to patients who are at an enhanced risk of having a child with chromosomal differences.
This can include:
How is it performed?
It is an ultrasound examination is first performed to confirm the dates, to assess the position of the placenta, and assess the baby for the ultrasound signs related to genetic/chromosomal differences. However, the test is performed at the ultrasound clinic by an Obstetrician Gynaecologist, Sonologist (Specialist ultrasound doctor).
However, the skin of the lower abdominal wall is cleansed with an antiseptic alcohol-based solution. However, the amniocentesis needle is then guided into the amniotic fluid by tracking its course on the ultrasound screen. Also, it takes about 30 seconds to draw up the 20mL of straw-coloured fluid which is required for analysis. The volume of fluid aspirated is about 1/6th of that present around the fetus, and it is naturally replaced over the next 24 hours.
When should I consider amniocentesis?
In case your fetus may suffer from genetic abnormalities, amniocentesis will give you an opportunity to understand what to expect from the pregnancy ahead and will help you be prepared. Before undergoing the procedure, you should think carefully about its purpose and what your feelings would be once you receive the test result. You might want to talk to someone who understands your concerns and worries, whether it be your spouse, close relative, or any other individual that you trust. Your health care provider may recommend you talk to a genetic counselor who will help you reach the best conclusion.
Your doctor will refer you to a genetic counselor to assist you in your decision making.
Prior to the procedure, your health care provider will inform you about the process itself and possible risks involved.
A genetic counsellor might also be recommended by your doctor to assist in decision-making.
The healthcare practitioner must fully explain the procedure and its associated risks prior to the procedure being carried out so that decisions can be made together in terms of whether or not to undergo it. The decision ultimately rests with you as the patient, and it is necessary for you to provide your informed consent.
Find out more about the process of making an informed decision on your treatment for pregnancy.
How safe is an amniocentesis?
An amniocentesis is usually safe both for the mother-to-be as well as the baby inside her, although it does present some minor risks of miscarriage. It would be wise to talk about the possible risks and benefits with your doctor.
It will be carried out only by a doctor with special training.
Where can I have an amniocentesis done?
An amniocentesis can usually be carried out at some hospitals and specialist ultrasound centers.
Amniocentesis: What occurs?
When will I get my results?
Relying on your circumstances and the tests requested by the doctor and your results will be available within 3 to 5 working days or 1 to 2 weeks. Also, you can ask your doctor when you can expect to receive the results.
Are there side effects or complications of an amniocentesis?
After having an amniocentesis. You will feel some mild uterine cramping. Also you might also have minimal spotting of blood or few drops of amniotic fluid through your vagina.