Dating
Dating/Viability Scan

Establishing an estimated due date early on in pregnancy is of vital importance, as this date is then used for the rest of the pregnancy to determine when the baby is likely be born. An ultrasound scan can be used to confirm menstrual dates or to accurately determine how old an embryo is if the last menstrual period is unknown. It is also important in determining the number of embryos, and in the case of twins, to determine what type of twins they are (identical vs non-identical, or monochorionic vs dichorionic). Ultrasound can also determine if a pregnancy is viable, or if there is a problem (for example, a miscarriage or ectopic pregnancy).

i.e. CRL measurment

Crown-rump length (CRL) is the measurment of the length of embryos and fetuses from the top of the head (crown) to the bottom of the buttocks (rump).  After 12 weeks, the accuracy of CRL in predicting gestational age diminishes and is replaced by measurment of the fetal biparietal diameter, head cirumference, abdominal circumference and other femur length.

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