New-borns receive their initial screening tests soon after birth. After a few years, as they become older, children are assessed during routine check-ups, sick visits, and school. Your school may also require specific screening tests for youngsters. As kids and teenagers grow and develop, there is much to keep track of. As a result, healthcare practitioners test for different things at various stages of a child's development. They can accomplish this in a variety of ways. During the check-up, doctors might look for problems with a child's growth and development, hearing and eyesight, blood pressure, and dental health. They can check for the conditions using a blood test or other type of test like for high cholesterol or anaemia.