What is Altra sound scan

I believe you meant "ultrasound scan." An ultrasound scan, also known as sonography, is a medical imaging technique that uses high-frequency sound waves to create images of the internal structures of the body. It is commonly used to visualize organs, tissues, and blood flow patterns, and is particularly known for its use in prenatal care to monitor the development of a fetus. Ultrasound scans are non-invasive, safe, and can provide real-time images, making them useful in diagnosing and monitoring various conditions.