Planning for a healthy baby starts with informed care. Whether your pregnancy begins naturally or through assisted reproductive techniques like IUI or IVF, prenatal testing plays a crucial role in monitoring your baby’s development from the earliest stages. At Metro IVF Malaysia, we offer a complete range of prenatal tests (also known as antenatal tests) to support your journey to parenthood — providing peace of mind, early detection of complications, and professional guidance throughout your pregnancy. In this guide, we’ll walk you through four essential antenatal tests commonly used to detect chromosomal and developmental issues — and how they fit into both natural and fertility-assisted pregnancies.

Why Prenatal Testing Matters 

These antenatal screening tests are a standard part of obstetric care for all expectant mothers in Malaysia, regardless of how the pregnancy began. However, women who conceive through fertility treatments like IVF or IUI may benefit from closer monitoring, particularly in cases such as:

• Maternal age above 35
• Previous miscarriage or genetic concerns
• Multiple pregnancy (e.g., twins)
• Desire for greater reassurance after fertility treatment

Early detection through prenatal tests helps doctors identify potential chromosomal abnormalities, structural problems, or other fetal health risks. These conditions may affect the baby’s development, physical health, or even survival. Knowing this information early allows you and your doctor to plan for any necessary treatments — such as surgery or early delivery — and ensures you receive the right care with greater confidence and peace of mind. Chart showing timeline of key prenatal tests during pregnancy

1. Nuchal thickness scan (Week 11–14)

The nuchal translucency (NT) scan is an early non-invasive ultrasound test that measures the clear fluid space behind your baby’s neck. An increased measurement can indicate a higher risk of:

• Down Syndrome (Trisomy 21)
• Edwards Syndrome (Trisomy 18)
• Patau Syndrome (Trisomy 13)

In healthy babies, the NT measurement is typically less than 3mm at 13 weeks 6 days. Chart showing risk of Down syndrome by maternal age (wald et al., 2003)

This test is often paired with a first-trimester blood test for a more accurate risk assessment. It is especially recommended for women undergoing IVF, as part of enhanced monitoring in early pregnancy.

2. NICC or NIPT Test (Week 15–20)

Also known as maternal serum screening, the triple test is a blood test that measures three important substances:

• AFP (alpha-fetoprotein) – from the baby’s liver
• Estriol – a form of estrogen
• Beta-hCG – a pregnancy hormone

The levels of these markers help estimate the risk of:

• Chromosomal abnormalities
• Neural tube defects, such as spina bifida

Note: This is a screening test, not a diagnosis. Abnormal results may lead to recommendations for additional testing, such as amniocentesis.

3. Amniocentesis (Week 15–20, if indicated)

Amniocentesis is an advanced diagnostic procedure where a small sample of amniotic fluid is collected using ultrasound-guided needle insertion. The fluid is tested for:

• Genetic and chromosomal abnormalities
• Infections or metabolic disorders

This test provides highly accurate results and is typically offered when:

• You’re over 35 years old
• Screening tests indicate elevated risk
• You have a family history of genetic disorders

Note: Amniocentesis carries a small risk of miscarriage, so it’s only done when medically indicated. It may be especially relevant in IVF pregnancies with pre-existing risk factors.

4. Detailed Fetal Anomaly Scan (Around Week 20-24)

The detailed fetal anomaly scan, is a mid-pregnancy ultrasound that carefully examines your baby’s anatomy. This includes:

• Brain, spine, heart, and abdominal organs
• Face, limbs, fingers, and toes
• Placenta location and amniotic fluid level
• Umbilical cord insertion

This scan detects around 80% of major structural abnormalities, including:

• Cleft lip and palate
• Heart defects
• Spina bifida – a birth defect where a baby’s spine and spinal cord don’t fully develop, causing potential nerve and mobility problems.
• Anencephaly – a severe birth defect where parts of a baby’s brain and skull are missing, leading to death shortly after birth.
• Detailed fetal anomaly scan can also detect certain physical abnormalities associated with trisomy.

It’s an exciting milestone for most parents and provides a comprehensive picture of your baby’s development.

Condition	NT Scan	Triple Test	Amniocentesis	Detailed Scan
Down Syndrome (Trisomy 21)	✓	✓	✓	✕
Edwards/Patau Syndromes	✓	✓	✓	✕
Neural Tube Defects	✕	✓	✓	✓
Physical/Organ Abnormalities	✕	✕	✕	✓

Test	Recommended Weeks	Purpose
Nuchal Thickness Scan	11–14 weeks	Screens for chromosomal abnormalities (e.g., Down Syndrome)
Triple Test	15–20 weeks	Estimates risk for neural tube and chromosomal conditions
Amniocentesis	15–20 weeks (as needed)	Confirms genetic abnormalities (diagnostic test)
Detailed Scan	20–24 weeks	Assess fetal anatomy and physical abnormalities

Where to Get Prenatal Tests in Malaysia

If you’re expecting — especially after IUI, IVF, or at age 35+ — it’s wise to discuss these tests early in your pregnancy with a trusted healthcare provider. At Metro IVF, we provide:

• Early pregnancy and viability scans
• Prenatal screening (NT, triple test, etc.)
• Detailed fetal anomaly scans
• Amniocentesis by experienced specialists 
• Gentle, supportive counselling for all parents-to-be

Our team combines advanced technology with compassionate care to support healthy outcomes for both mother and baby. If you’d like more information or would like to schedule a scan or consultation, you’re warmly welcome to get in touch with us.