What tests should be done to confirm pathological jaundice?

Jaundice in newborns is the most common phenomenon. Most babies will develop jaundice around three or four days after birth. Jaundice is generally divided into physiological jaundice and pathological jaundice. Most newborns have physiological jaundice, which will disappear on its own. However, some babies will have pathological jaundice. In this case, the color of jaundice is generally darker than physiological jaundice, and the baby may also have some discomfort, such as not drinking milk. So what kind of examinations are generally done to confirm pathological jaundice? Let's find out below.

1. To confirm the diagnosis of pathological jaundice, the first thing to do is to have a routine blood test, reticulocyte count and nucleated red blood cell count, and measure total bilirubin and direct bilirubin. If the serum bilirubin reaches 205μmol/L (12mg/dl) in full-term infants and 256μmol/L (15mg/dl) in premature infants, we should be alert to the occurrence of pediatric bilirubin encephalopathy.

2. If you want to diagnose neonatal pathological jaundice, you need to do urine routine test and urine tricholine test. In addition, parents should pay attention to whether the baby's urine and feces have abnormal colors. If necessary, a fecal choline test can be performed. This is more helpful for diagnosing neonatal pathological jaundice.

3. In addition, other tests should be selected according to the condition. For example, if neonatal hepatitis is suspected, liver function tests should be performed. Blood culture should be performed for neonatal sepsis, and smear and culture of local infection exudates should be performed. If congenital biliary obstruction is suspected, attention should be paid to the dynamic changes of blood bilirubin and stool color. Lipoprotein X test, B-ultrasound, CT and other tests should be performed if necessary.

Note:

Through the above examinations, pathological jaundice can generally be diagnosed. Once diagnosed, parents should take their baby for diagnosis and treatment in time, pay attention to the baby's protection, and have regular check-ups to understand the disappearance of jaundice.