Which sign would indicate possible acute bilirubin encephalopathy in a neonate with high bilirubin?

Which sign would indicate possible acute bilirubin encephalopathy in a neonate with high bilirubin?

• A. Lethargy or poor suck with high-pitched cry.
• B. Jaundice with no neurologic signs.
• C. Normal feeding.
• D. Hypothermia only.

Answer: (A)

In this context, the key is neurologic involvement from high bilirubin. The sign that best indicates possible acute bilirubin encephalopathy is lethargy or poor suck with a high-pitched cry. When bilirubin levels are high enough to affect the brain, newborns can become less responsive, feed poorly, and emit a high-pitched cry—a cluster of signs pointing to CNS impact rather than just elevated bilirubin alone. Jaundice without neurologic signs means bilirubin is high but the brain isn’t affected yet. Normal feeding lacks any neurologic change, and hypothermia by itself is non-specific. Recognizing the combination of decreased alertness or poor feeding with a high-pitched cry warrants urgent evaluation and treatment to prevent progression.

In this context, the key is neurologic involvement from high bilirubin. The sign that best indicates possible acute bilirubin encephalopathy is lethargy or poor suck with a high-pitched cry. When bilirubin levels are high enough to affect the brain, newborns can become less responsive, feed poorly, and emit a high-pitched cry—a cluster of signs pointing to CNS impact rather than just elevated bilirubin alone. Jaundice without neurologic signs means bilirubin is high but the brain isn’t affected yet. Normal feeding lacks any neurologic change, and hypothermia by itself is non-specific. Recognizing the combination of decreased alertness or poor feeding with a high-pitched cry warrants urgent evaluation and treatment to prevent progression.