Diagnostic Results Day 2, 0930:Total serum bilirubin 14.3 mg…

Diagnostic Results Day 2, 0930:Total serum bilirubin 14.3 mg/dL (1.0 to 12.0 mg/dL)Day 3, 0930:Total serum bilirubin 9.9 mg/dL (1.0 to 12.0 mg/dL)   Nurses’ Notes Day 3, 0930: Respirations are easy and unlabored. Alert and active when awake with lusty cry. Color is jaundiced. Anterior fontanel is soft. Breastfeeding well every 2-3 hours. Passed four loose, green stools. Peri-anal skin is intact. Parents were observed cuddling newborn.  Which of the following pieces of information is the best indication that the treatment has been effective?