Prior to discharge from the hospital, the newborn most often will receive a screening blood test to ...

C

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A Incorrect. The newborn, prior to discharge from the hospital, does not most often receive a screening blood test to rule out Addison's disease and pituitary dysfunction.
B Incorrect. The newborn, prior to discharge from the hospital, does not most often receive a screening blood test to rule out Down syndrome and autism.
C Correct. The newborn, prior to discharge from the hospital, does most often receive a screening blood test to rule out phenylketonuria and hypothyroidism.
D Incorrect. The newborn, prior to discharge from the hospital, does not most often receive a screening blood test to rule out Marfan's syndrome and cerebral palsy.