What to Expect During an Anomaly Scan
An anomaly scan, often referred to as the 20-week scan, is a crucial health check for your baby. Typically performed between 18 and 21 weeks of pregnancy, this scan uses ultrasound waves to create detailed images of your baby and the womb. It allows healthcare professionals to assess your baby’s development and identify potential issues early on. You’ll see detailed images of your baby’s spine, limbs, heart, and brain during this comprehensive check-up.
Key Elements Examined During the Scan
The anomaly scan involves a thorough review of your baby’s anatomy. The sonographer will examine the brain, spinal cord, face, heart chambers and valves, stomach, kidneys, bladder, and limbs. They will also check the placenta's position, measure amniotic fluid levels, and assess the umbilical cord to ensure a healthy nutrient and oxygen supply.
Deciphering Sonographer Observations
While the sonographer performs the scan, they record observations, including measurements and anatomical assessments. They look for the presence of key structures and normal growth patterns. Measurements like head circumference and femur length help ensure your baby is developing as expected. Although the sonographer may point out interesting sights during the scan, a qualified physician will interpret the clinical images later.
Normal vs. Abnormal Results: What to Expect
After the anomaly scan, you’ll receive a report detailing the findings. Normal results indicate typical development stages, with no unusual fluid buildup and healthy organ development. Abnormal results flag areas that need further scrutiny, ranging from minor to more serious concerns. Your doctor may request additional tests to get a closer look or to rule out false positives. Remember, ultrasounds are an early warning system, not the final diagnosis.
What to Bring and Questions to Ask
For your anomaly scan, bring your pregnancy notes, any previous ultrasound scans, and a full bladder to improve scan visibility. Dress comfortably, in clothes that allow easy access to your abdomen. Prepare questions to ask, such as:
- Can you explain what you’re looking at right now?
- Is the baby’s growth on track for their gestational age?
- Are there any visible abnormalities, and what could they mean?
- Can you tell the sex of the baby during this scan?
- What will happen if there are any concerns?
Understanding Follow-Up Procedures
If your results indicate the need for further exploration, follow-up procedures may include additional ultrasounds, possibly with advanced Doppler technology, MRI or CT scans for a more thorough look, or lab work to uncover any underlying conditions. These follow-ups help create a clearer picture of your baby’s health.
Dealing with Potential Abnormalities
Discovering potential abnormalities can be distressing, but your healthcare team will guide you through the process. Early detection allows for more options, earlier interventions, and better preparation for managing any conditions. Seek support from your healthcare team, family, and friends, and make informed decisions to ensure the best possible outcome for you and your baby.
Reviewed by
Dr. Varini N - Milann, Kumara Park
