Early Biochemistry- Roche (SSDW) Test
- Category
- Pregnancy
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 5 days
- Fasting
- No Fasting
- Age
- 18-55 Years
What Is This Test?
First-trimester biochemical markers (PAPP-A and free beta-hCG) measured early in pregnancy, to be combined later with the NT ultrasound scan.
Why this test is performed?
Allows the combined screening risk for Down syndrome and other trisomies to be calculated and reported at the time of the NT scan.
Who should take this test?
Women planning pregnancy or who are pregnant, as advised by the gynaecologist.
Test Preparation
No fasting needed.
Medical disclaimer · for information only, not medical advice
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.
Read our Editorial Policy and Medical Review Process.
- Report time: In 2 days
- No fasting
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- Report time: In 5 days
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Combined Screening with PlGF- Roche (Astraia) Test
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Blood sample taken from a vein in your arm
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- Report time: In 5 days
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Blood sample taken from a vein in your arm
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- Report time: In 5 days
- No fasting
Pregnancy Associated Plasma Protein-A(PAPP-A) Test
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Blood sample taken from a vein in your arm
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Frequently asked questions
No. Screening tests estimate risk only. High-risk results are followed by counselling and, if chosen, confirmatory tests such as NIPT, CVS or amniocentesis.
No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.
Blood sample taken from a vein in your arm.
Usually within 3–4 days after the sample reaches the lab. You will receive the report online.
This test is meant for women only.
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