Jaundice is considered pathologic if it presents within the first 24 hours after birth, the total serum bilirubin level rises by more than 5 mg per dL (86 mol per L) per day or is higher than 17 mg per dL (290 mol per L), or an infant has signs and symptoms suggestive of serious illness.

What is a bilirubin nomogram?

The Bhutani Nomogram is used to determine the level of risk based on the Infant’s hours of age and serum bilirubin result. Major Risk Factors for severe hyperbilirubinemia in infants >35 weeks gestational age: Predischarge bilirubin in high risk zone. Jaundice observed in the first 24 hours of life.

When should bilirubin be rechecked?

Recheck TsB within 4-6 hours of initiation of phototherapy and then every 8-12 hours after levels decline. TsB levels can be further spaced to every 12-24 hours once declining TsB levels have been well established.

When do you recheck bilirubin after starting phototherapy?

A neonate being treated with home phototherapy (fiber optic blanket, Bili Blanket) should have a TSB checked: – Every 24-48 hours if the neonate is > 38 weeks gestation. – Every 24 hours if the neonate is < 38 weeks gestation. Do not delay discharge to obtain a rebound bilirubin level.

What is the normal range for bilirubin?

Normal results for a total bilirubin test are 1.2 milligrams per deciliter (mg/dL) for adults and usually 1 mg/dL for those under 18. Normal results for direct bilirubin are generally 0.3 mg/dL.

When does ABO incompatibility occur?

ABO incompatibility happens when a mother’s blood type is O, and her baby’s blood type is A or B. The mother’s immune system may react and make antibodies against her baby’s red blood cells. The consequences and treatment are similar to Rhesus disease. Check Jaundice in babies.

How common is rebound jaundice?

Incidence of rebound was found to be 11%. The most common cause of hyperbilirubinemia was found to be physiological jaundice (64.7%) followed by prematurity (27%), polycythemia (3.7%) and sepsis (3.3%).

What is a critical bilirubin level?

Typically, bilirubin levels fall somewhere between 0.3 and 1.2 milligrams per deciliter (mg/dL). Anything above 1.2 mg/dL is usually considered high. The condition of having high bilirubin levels is called hyperbilirubinemia.

What is an hour-specific bilirubin nomogram used for?

The use of an hour-specific bilirubin nomogram has aided this task considerably by demonstrating that a single serum bilirubin level before discharge can identify infants at high risk for hyperbilirubinemia and direct the timing of their follow-up.

How reliable is the Bhutani et al bilirubin nomogram in gestational age?

None required an exchange transfusion or developed bilirubin encephalopathy. Conclusions The Bhutani et al bilirubin nomogram reliably identified infants at gestational age of older than 35 weeks with direct Coombs-positive results who were at risk for significant hyperbilirubinemia and directed the timing of follow-up for these infants.

What is the prevalence of hyperbilirubinemia in neonates?

Slightly more than half of all neonates become visibly jaundiced in the first week of life. Almost all hyperbilirubinemia in the immediate neonatal period is unconjugated, which is termed indirect bilirubin, based on older laboratory measurement methods; conjugated bilirubin is termed direct bilirubin.

Is there a bilirubin algorithm for infants with direct Coombs-positive results?

The lack of a bilirubin algorithm for infants with direct Coombs-positive results is problematic. Infants who have direct Coombs-positive results are at higher risk for significant jaundice compared with those with direct Coombs-negative results.