During amniocentesis, approximately 15mls of amniotic fluid is withdrawn from the amniotic sac.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 Government of Western Australia has declared a State of Emergency for Western Australia. The situation changes often; please inquire with our medical receptionists about the relevant steps taken to slow the spread.

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

    • All patients and visitors are to wear masks, unless an exemption applies.
    • All patients and visitors to scan our business SafeWA QR code on entry to our sites.
    • Patients are to be advised that family/friends are not to attend appointments with them (the only exceptions being if they are a parent/guardian of a minor, if the patient requires a carer, or they are the partner of an obstetric patient.)
    • We can confirm vaccination status of our employees and contractors meet WA Health regulations.
    • Telehealth services are being used wherever possible.
    • Physical distancing and hand hygiene are to be practiced at all times.

Please attempt to confirm your appointment before coming.

COVID-19 Health Information Hotline: 1800 020 080 | Department of Health Health Warnings

Updated 16 Feb 2022