lewisf6442 lewisf6442 06-02-2024 Health contestada The nurse knows that jaundice first becomes visible in a newborn when serum bilirubin reaches which level? 1) 1 to 3 mg/dL (17.1-51.3 µmol/L) 2) 2 to 4 mg/dL (34.2-68.4 µmol/L) 3) 5 to 7 mg/dL (85.5-119.7 µmol/L) 4) 8 to 10 mg/dL (136.8-171 µmol/L)