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High levels of bilirubin, a brownish yellow component of liver bile resulting from the decomposition of old blood cells, indicates brain injury or other problems in newborns. The reference range, normal values, vary from lab to lab, with respect to the age and term of the newborn, states WebMD.


According to the American Pregnancy Association, serum bilirubin levels that exceed 10 milligrams at under 24 hours after birth, above 15 milligrams at 24 to 48 hours after birth, above 18 milligrams at 49 to 72 hours after birth and above 20 milligrams after 72 hours beyond birth require treatment.


Values derived from a blood bilirubin test are known as bilirubin levels. Bilirubin is a brownish-yellow substance formed in the liver after it breaks down old red blood cells. It circulates in the bloodstream, and a blood test can be used to determine blood bilirubin levels, according to WebMD.


High bilirubin levels indicate problems with the gall bladder, liver or bile ducts, according to Healthline. A person can also have high bilirubin levels due to problems in his blood. Infants may have high bilirubin levels after birth. This could be harmless or could indicate serious problems such a


A high bilirubin level, or hyperbilirubinemia, in newborn babies is usually not dangerous and does not require extensive treatment, says WebMD. Typically, infants eliminate excess bilirubin through their first bowel movements. Colostrum in breast milk encourages bowel movements in newborns, accordin


High bilirubin test results may be indicative of blood disorders or impaired liver function, such as liver disease or blocked bile ducts. Too much bilirubin, or hyperbilirubinemia, in newborn babies can cause brain damage, according to WebMD.


In general, a total bilirubin level above 1.9 milligrams per deciliter is considered elevated, notes MedlinePlus. The normal range for total bilirubin level in the blood is 0.3 to 1.9 milligrams per deciliter. Direct, or conjugated, bilirubin normally ranges from 0 to 0.3 milligrams per deciliter.


Bilirubin, a brownish yellow substance, is produced by the body when it breaks down spent red blood cells. After processing in the liver, the material is then expelled by the bowels. The two kinds of bilirubin are indirect and direct.


Symptoms of high bilirubin levels include jaundice, itchy skin, fatigue, dark urine and low appetite, explains Healthline. When a patient's bilirubin levels are high, the doctor conducts further tests to determine the cause, according to WebMD.


Lower bilirubin levels with caffeine, aspirin, and prescribed medications such as penicillin and barbiturates, according to the UCSF Medical Center. Children's Health Network adds that frequent feedings of either breast milk or formula decreases bilirubin levels in infants.