A nurse is teaching a client who gave birth to a term newborn 24 hours ago about the newborn screening for phenylketonuria. Which of the following statements should the nurse include in the teaching?

Your newborn will have a heel stick blood test now for the newborn screening and phenylketonuria test.

Your newborn does not have manifestations, so the test will not be done.

Your newborn will be tested one week after birth.

Your newborn will be given nothing by mouth for 6 hours prior to testing.