What newborn screening tests are commonly performed and why?

• A. Hearing screen; metabolic/genetic panels; congenital heart disease screen, to detect conditions early for treatment and intervention.
• B. Vision screen only.
• C. Blood sugar test only.
• D. No screening tests are performed.

Answer: (A)

Newborn screening focuses on catching serious conditions early, when treatment can prevent damage or improve outcomes. The commonly performed tests cover different types of problems that may not be obvious right after birth. A hearing screen checks for hearing loss, which is crucial because early identification supports language and social development. Metabolic and genetic panels screen for inborn errors of metabolism and certain genetic conditions; finding these early allows dietary changes, therapies, or other interventions that prevent illness or long-term complications. A pulse oximetry screen for congenital heart disease looks for low oxygen levels that can signal heart defects, enabling prompt evaluation and treatment if needed. Together, these screenings aim to detect conditions before symptoms appear, so timely care can start. Tests focusing on only one area, like vision or blood sugar alone, would miss many conditions that screening programs are designed to catch, and skipping screening would leave treatable issues undetected.