Guide — Neonatal
Hyperbilirubinemia and Phototherapy Nursing Care
Most newborns get jaundiced; very few get hurt by it. The nursing job is knowing which is which — and running phototherapy so well that the dangerous cases never reach the brain.
9 min read · Neonatal
Educational use only. Phototherapy initiation and discontinuation follow nomogram-based provider decisions; this guide covers the nursing care around them. This material supports nursing education and exam review. It is not medical advice and is not a substitute for clinical judgment, institutional policy, or medical direction. Always follow facility protocols and current provider orders.
Overview
Newborns produce bilirubin fast (high red cell mass, short red cell lifespan) and clear it slowly (immature hepatic conjugation, slow gut transit that lets bilirubin reabsorb — the enterohepatic circulation). The result is physiologic jaundice: visible yellowing after 24 hours of life, peaking around days 3–5, resolving within two weeks.
Pathologic jaundice breaks that pattern — appearing in the first 24 hours, rising fast, or climbing above treatment thresholds. The usual engine is hemolysis: ABO or Rh incompatibility, G6PD deficiency, or a resolving cephalohematoma adding its broken-down blood to the load. Unconjugated bilirubin at extreme levels crosses the blood-brain barrier — kernicterus — which is why thresholds, nomograms, and timing rules exist.
Assessment Findings
| Assessment | Findings | Notes |
|---|---|---|
| Visual progression | Jaundice advances head to toe as levels rise | Visual estimation is unreliable — measure TcB/TSB per protocol |
| Risk review | First 24 hours? Coombs-positive? Bruising or cephalohematoma? Preterm? Poor intake? Sibling needed phototherapy? | Each one moves the infant up the risk curve |
| Feeding and output | Fewer than expected wet diapers and stools = less bilirubin leaving | Stool carries bilirubin out; intake drives stooling |
| Neuro warning signs | Lethargy, poor suck, high-pitched cry, arching (opisthotonos) | Acute bilirubin encephalopathy — emergency escalation |
Phototherapy Nursing Care
Maximize exposure
Undressed except a diaper, repositioned regularly so light reaches all surfaces, light source at the prescribed distance. Banks of lights, blankets (biliblankets), or both per orders.
Protect the eyes
Opaque eye shields on whenever lights are on — check placement every assessment, remove during feeds for bonding and eye assessment.
Guard temperature and fluids
Phototherapy adds insensible water loss and thermal stress both directions — monitor temperature per protocol, track intake, diapers, and weight. Feed frequently; supplemental IV fluids only per orders.
Skin care, no shortcuts
No lotions or ointments under lights (burn risk). Expect loose green stools as bilirubin clears — protect the skin. Bronze discoloration suggests an elevated conjugated fraction; report it.
Nursing Priorities
Feeding is treatment: bilirubin exits in stool, and effective frequent feeding (8–12 times daily) interrupts enterohepatic reabsorption. Phototherapy works alongside feeding by converting skin bilirubin to water-soluble isomers excreted without conjugation.
Trend, do not snapshot: bilirubin level against hour-of-life on the nomogram, weight against birth weight, output against expectations. Escalate a rising trajectory, any neuro change, or jaundice within 24 hours of birth immediately — and anticipate escalation pathways (intensive phototherapy, IVIG for isoimmune hemolysis, exchange transfusion at extreme levels) under provider direction.
Patient and Family Education
Explain that jaundice is common, screened for, and treatable — and that the lights are converting the yellow pigment so the baby can pass it. Encourage parents to hold and feed during scheduled breaks; bonding does not stop for phototherapy.
For discharge: feeding frequency, watching for deepening yellow (especially legs), fewer wet diapers, sleepiness through feeds, and the importance of the follow-up bilirubin check appointment — the rebound check matters.
NCLEX Pearls
- ✦Jaundice in the first 24 hours of life is pathologic — report immediately.
- ✦Eyes shielded under lights; lotion never under lights.
- ✦Feeding is bilirubin clearance: more milk, more stools, less reabsorption.
- ✦Lethargy, poor suck, high-pitched cry, arching = possible bilirubin encephalopathy — emergency.
- ✦Stopping breastfeeding is rarely the answer; better feeding usually is.
Related Resources
Standards & sources
Fact-checked Jun 21, 2026This page is written to align with American Academy of Pediatrics (AAP) · Neonatal Resuscitation Program (NRP) · AWHONN. It is an educational summary, not a citation of any single document — always verify specific doses, values, and protocols against current guidelines and your facility policy. How we source content →