Respuesta :

Answer:

Option C

Explanation:

  • Antigen testing is mandatory in United States
  • PKU stands for Positive phenylketonuria

This test is mandatory in all 50 states of US for new. born babies

randompersonlol98
Answer: Choice C

All 50 states in the United States require newborns to be screened for PKU. Many other countries also routinely screen infants for PKU. If you have PKU or a family history of it, your doctor may recommend screening tests before pregnancy or birth.