A nurse is contributing to the care of a newborn who is experiencing hyperbilirubinemia and is receiving phototherapy. Which of the following findings indicate that the phototherapy is effective?

Serum bilirubin level has increased from 6 hours ago.

Hemoglobin and hematocrit have increased.

Transcutaneous bilirubin (TcB) level has decreased from 6 hours ago.

Jaundice moves from chest to groin level.