What is the normal value of bilirubin in infants?

There are many common diseases among infants. When treating infant diseases, it is necessary to choose multiple treatment methods, which is very helpful for controlling infant diseases. Many parents do not take comprehensive care of their babies, which results in abnormal conditions in the baby's body not being discovered in time. Parents should pay attention to this. What is the normal value of bilirubin in infants? Many people are not clear about this.

Normal bilirubin values ​​for infants:

The normal range of bilirubin for infants is:

Total bilirubin is between 3.4 and 17.1 mol/L;

Direct bilirubin is between 0 and 6.8 mol/L;

Indirect bilirubin is between 1.7 and 10.2 mol/L.

Bilirubin cut-off range for infants:

The critical value of total bilirubin is 1.3-1.5 mg/dl. If the infant exceeds this value, it is considered abnormal.

It should be noted that 24 hours after the baby is born, the serum bilirubin may gradually increase from 17-51 μmol/L at birth to 86 μmol/L or above. Clinically, jaundice will appear but there are no other symptoms. It will automatically disappear within 1-2 weeks. This is the physiological jaundice period when the baby's bilirubin is normal. Parents do not need to worry too much about this situation.

examine

1. Blood biochemical examination: decreased red blood cells, decreased hemoglobin, significantly increased reticulocytes, and nucleated red blood cells were seen in the smear. When counting white blood cells, the number can be greatly increased because the nucleated red blood cells are counted together. These blood changes also vary with the severity of hemolysis.

2. Blood type test: When the Rh blood types of mother and baby are incompatible, using horse serum to identify ABO blood type may result in incorrect ABO blood type determination. Because horses produce anti-A (B) antibodies and anti-IgG antibodies when stimulated by human red blood cell surface antigens, when unexplained questions are found, this disease should be considered and human serum should be used to identify the ABO blood type.

3. Specific antibody test: there are immune antibodies. The jaundice index in the blood increases and the bilirubin increases. Due to different operating methods, the results can differ by more than 3 times. The excretion of urobilinogen in urine and feces increases. When the bile duct is blocked by bile clots, the stool may be grayish white and bilirubin may be detected in the urine. In ABO hemolytic disease, the activity of erythrocyte acetylcholine esterase is significantly reduced. Plasma albumin, prothrombin, and fibrinogen may be decreased, all of which can contribute to bleeding symptoms. In severe cases, thrombocytopenia, prolonged bleeding time, and poor clot retraction may be used. DIC occurs in a few cases.

4. Check the bilirubin content in amniotic fluid.

5. Imaging examination.

6. Other laboratory tests.

After understanding the normal value of bilirubin for infants, if the infant exceeds this normal value, it means that there is something abnormal in the infant's body, and timely improvement is needed at this time. However, in the treatment of infant diseases, the choice of treatment method is very critical, and some highly irritating treatment methods cannot be chosen at will.