The 20-week anatomy scan is a detailed ultrasound that allows your provider to examine your baby’s organs, growth, and development. Often called the “mid-pregnancy scan,” it usually occurs between 18 and 22 weeks of pregnancy. According to the American College of Obstetricians and Gynecologists, this scan checks the baby’s brain, heart, spine, kidneys, limbs, and more.
This ultrasound plays a vital role in monitoring both the baby and the mother. At TrueView Ultrasound, patients receive high-resolution fetal imaging in Roseville that gives families peace of mind and providers the clarity they need for early decision-making.
Why the 20-Week Scan Is Important
This scan isn’t just a photo opportunity—it’s a full diagnostic screening. Providers use this exam to:
- Measure fetal growth
- Confirm the placenta’s position
- Evaluate amniotic fluid levels
- Detect potential birth defects
- Check fetal movement and heart rate
Even if no concerns are found, the scan offers a reassuring moment for many expecting parents. It often includes the exciting possibility of discovering the baby’s gender, if desired.
What to Do Before the Scan
Hydration Matters
Drink plenty of water in the days leading up to your appointment. Staying hydrated helps improve the quality of ultrasound images by increasing the amount of amniotic fluid. On the day of your scan, drink about 16–24 ounces of water one hour before your appointment unless instructed otherwise.
You can follow this ultrasound preparation guide for Roseville patients for detailed steps on how to get the most out of your session.
Wear Comfortable Clothing
Choose a two-piece outfit so your belly is easily accessible. Avoid wearing dresses or full bodysuits. A stretchy waistband or maternity pants work best for quick access without discomfort.
What to Bring With You
Bring your ID, insurance card, and any referral paperwork if required. You may also want to bring a snack, water bottle, and phone or notepad to jot down questions or insights from the technician. Many parents also bring a support person to share the experience.
If you’re unsure about documentation, you can check in with the clinic team through the contact page for TrueView Ultrasound in Roseville.
What Questions Should You Ask?
During the scan, it’s okay to ask questions. Some helpful ones include:
- Is the baby measuring on track for gestational age?
- How is the placenta positioned?
- Is the amniotic fluid level normal?
- Are all the organs visible and developing as expected?
- Can I get photos or video from the scan?
The sonographer may not provide medical interpretation, but they can tell you what part of the body they are scanning and share basic visual information.
How to Interpret Your Results
Understanding the Report
The scan report will be reviewed by a radiologist or your OB-GYN. It may include measurements like femur length, head circumference, abdominal circumference, and estimated fetal weight.
Common Findings
Most 20-week scans are normal. Occasionally, a minor finding may appear, like a choroid plexus cyst or a two-vessel cord. These findings often resolve on their own but may prompt further monitoring. A clear report will note that all anatomical structures are visualized and within normal limits.
In some cases, additional imaging may be needed later. TrueView provides detailed ultrasound screenings that help doctors track developmental changes with accuracy and care.
Final Thoughts Before Your Appointment
Feeling a little nervous is completely normal. Try to arrive about 10–15 minutes early and bring a support person if it helps ease anxiety. Most appointments take 30 to 45 minutes, depending on how active your baby is during the scan.
Understanding how the process works makes the experience much smoother. With expert sonographers, modern equipment, and personalized care, TrueView Ultrasound offers an environment that supports both emotional comfort and clinical accuracy.
A 20-week anatomy scan gives families a deeper connection to their baby’s development while equipping providers with critical health data. If this is your first anatomy scan, taking time to prepare can enhance the quality of the experience and the results. At TrueView Ultrasound, our team is dedicated to providing compassionate care and expert diagnostics during every stage of pregnancy. We offer a calm, welcoming space where your comfort and clarity come first. Whether you’re local or visiting the Roseville area, we look forward to supporting you at this special moment.
For expecting parents curious about different stages of fetal ultrasound imaging, TrueView offers multiple scan options tailored to your journey.