Congrats on the arrival of your baby.
Are you able to call back the pediatrician to ask him to explain more about the TS4 reading? Where did you deliver?
Did the pediatrician ask you to go back to his clinic a few days after to monitor the jaundice level?
After I was discharged with my baby, 1 or 2 days later I went back to my pediatrician for him to check my boy's jaundice level and to take his weight. Then he would give us more details as what to look out for for my boy.