Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Emergency evaluation is needed for poor responsiveness, stiffness, marked floppiness, arching, breathing difficulty, or seizures.
Between visits, caregivers should seek prompt advice if jaundice appears to deepen, feeding worsens, or the baby becomes sleepier than usual.
Routine follow-up may include weight checks, feeding assessment, repeat bilirubin measurement, and review of urine and stool output.
Parents and caregivers should receive a clear plan for when and where the baby will be reassessed.
Babies with suspected or confirmed bilirubin encephalopathy may need longer-term follow-up with specialists.
Care can include formal hearing testing, developmental assessment, physical or occupational therapy, speech and feeding support, neurology care, and early-intervention services.
The article also says
After phototherapy, the care team may repeat bilirubin testing because the level can rise again when treatment stops.
The timing depends on the baby’s age, gestational age, bilirubin level, treatment course, and risk factors.
Every sign above is quoted from the sofidex article on Bilirubin encephalopathy. If you are not sure, err upward — it is always reasonable to be checked.