👤 By the CinnaRN Clinical Content Team🕐 Updated 2026-08-23🏷️ Physiological Adaptation🔖 Free to read, print, and share
Also known as: newborn jaundice · hyperbilirubinemia · neonatal jaundice · physiologic jaundice
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Use this quick-reference guide to spot, treat, and prevent Neonatal Jaundice on the NCLEX. Keep it handy during review and on exam day!
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📒 The 1-minute cheat sheet
📌 Types
Physiologic → after 24h, peaks day 3-5
Pathologic → <24h, hemolysis/ABO
🧪 Labs
↑ unconjugated bilirubin
Bili >20 risk → kernicterus
🚩 Report
Kernicterus → brain damage, lethargy
Jaundice in first 24h
High-pitched cry, poor feeding
✅ Do
Phototherapy → eyes covered, naked
↑ feeds → flush bilirubin in stool
Monitor temp, hydration, output
📚 Neonatal Jaundice — full study notes
The cheat sheet above is your quick recall card. These notes go deeper — what it is, what to do first, what must be reported, and what to teach.
Neonatal jaundice is yellowing of the skin and sclera from elevated unconjugated (indirect) bilirubin as fetal red blood cells break down faster than the immature liver can conjugate them. Physiologic jaundice appears after 24 hours of life and peaks around days 3-5. Jaundice within the first 24 hours is always pathologic and often due to hemolysis such as Rh/ABO incompatibility.
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Key points
Understand these first
Jaundice progresses cephalocaudally, beginning at the head/face and moving down the body as bilirubin rises.
Jaundice appearing in the first 24 hours of life is pathologic and requires prompt evaluation.
Phototherapy converts unconjugated bilirubin into water-soluble forms that are excreted; the eyes are covered and the diaper area kept minimal to maximize skin exposure.
Frequent feeding promotes stooling, which eliminates bilirubin and helps prevent dehydration-related rises.
Kernicterus (bilirubin encephalopathy) is irreversible brain damage from very high unconjugated bilirubin crossing the blood-brain barrier.
Breastfeeding jaundice (early, from underfeeding) differs from breast-milk jaundice (later onset).
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Nursing priorities
What to do, in order
Monitor transcutaneous/serum bilirubin levels and plot against age in hours on the nomogram.
Promote frequent feeding (8-12 times/day) to enhance bilirubin elimination.
During phototherapy, protect the eyes with shields, expose maximal skin, reposition often, and monitor temperature and hydration.
Assess for signs of bilirubin toxicity and ensure adequate output (wet diapers, stools).
Identify risk factors such as prematurity, bruising/cephalohematoma, and blood-type incompatibility.
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Red flags — report now
Escalate immediately
Report jaundice appearing within the first 24 hours of life (pathologic).
Report lethargy, poor feeding, high-pitched cry, hypertonia/arching, or seizures (kernicterus).
Report rapidly rising bilirubin or levels approaching the exchange-transfusion threshold.
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Labs & values
Numbers to know
Total serum bilirubin: interpreted by age in hours; concern generally rises above ~12-15 mg/dL in term infants
Cord/direct Coombs test positive in immune hemolysis (Rh/ABO)
Hematocrit/reticulocyte count to assess hemolysis
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Patient teaching
What patients must know
Feed the baby frequently to help clear bilirubin through stooling.
Watch at home for increasing yellow color spreading to the trunk, arms, or legs and report it.
Sunlight through a window is not adequate treatment; follow up for bilirubin checks as scheduled.
❓ Neonatal Jaundice: NCLEX FAQs
What are the priority nursing interventions for Neonatal Jaundice?
Monitor transcutaneous/serum bilirubin levels and plot against age in hours on the nomogram. Promote frequent feeding (8-12 times/day) to enhance bilirubin elimination. During phototherapy, protect the eyes with shields, expose maximal skin, reposition often, and monitor temperature and hydration. Assess for signs of bilirubin toxicity and ensure adequate output (wet diapers, stools).
What are the warning signs of Neonatal Jaundice a nurse must report?
Report jaundice appearing within the first 24 hours of life (pathologic). Report lethargy, poor feeding, high-pitched cry, hypertonia/arching, or seizures (kernicterus). Report rapidly rising bilirubin or levels approaching the exchange-transfusion threshold.
What do I need to know about Neonatal Jaundice for the NCLEX?
Jaundice progresses cephalocaudally, beginning at the head/face and moving down the body as bilirubin rises. Jaundice appearing in the first 24 hours of life is pathologic and requires prompt evaluation. Phototherapy converts unconjugated bilirubin into water-soluble forms that are excreted; the eyes are covered and the diaper area kept minimal to maximize skin exposure. Frequent feeding promotes stooling, which eliminates bilirubin and helps prevent dehydration-related rises.
What patient teaching is important for Neonatal Jaundice?
Feed the baby frequently to help clear bilirubin through stooling. Watch at home for increasing yellow color spreading to the trunk, arms, or legs and report it. Sunlight through a window is not adequate treatment; follow up for bilirubin checks as scheduled.
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Quick Tip
Jaundice progresses cephalocaudally, beginning at the head/face and moving down the body as bilirubin rises.