During amniocentesis, approximately 15mls of amniotic fluid is withdrawn from the amniotic sac.  Amniotic fluid contains cells that have been shed from the fetus.

It involves passing a fine needle through your abdomen into the uterus in order to aspirate the amniotic fluid.

An amniocentesis is usually performed around 15 – 16 weeks of gestation, always with ultrasound guidance.

Although performed safely, there is a small risk of miscarriage from an amniocentesis (less than 1:300).

Preliminary results for Down syndrome can be available within 3 – 4 days.  The full chromosome analysis takes between 2 and 2 1/2 weeks.

Coronavirus (COVID-19) Health Alert

The World Health Organization (WHO) declared COVID-19 a worldwide pandemic on 11 March 2020. The Government of Western Australia has declared an end to the COVID-19 Pandemic State of Emergency on 4 Nov 2022. Please inquire with our medical receptionists about the relevant steps taken to manage bookings with COVID-19 still in the community.

The following guidelines provided from St John of God Hospital apply within our clinics:

    • Face masks are not mandated but they should be worn in crowded indoor settings and where physical distancing is not possible; patients are free to wear them at their discretion.
    • We can confirm vaccination status of our employees and contractors meet WA Health regulations.
    • Hand hygiene is to be practiced at all times.
    • Please do not enter the clinic if you are unwell, tested positive for COVID-19 in the last seven days, been in close contact with a COVID-19 positive person in the last seven days, or if you have any symptoms of infectious illness such as: fever, cough, shortness of breath, sore throat, loss of smell or taste, runny nose, diarrhoea, nausea or vomiting.

Please attempt to confirm your appointment before coming.

Healthdirect Hotline: 1800 020 080 | Department of Health Health Warnings

Updated 05 Jan 2023