What are the 2 most common types of neonatal hyperbilirubinemia?

What are the different types of newborn jaundice?

• Physiological jaundice. The most common type of jaundice in newborns is physiological jaundice.
• Breastfeeding jaundice. Jaundice is more common in breastfed babies than formula-fed babies.
• Breast milk jaundice. Breast milk jaundice is different than breastfeeding jaundice.

When does kernicterus occur?

In some cases, symptoms and physical findings of kernicterus appear two to five days after birth. Within the first few days of life, affected infants develop abnormally high levels of bilirubin in the blood (hyperbilirubinemia) and persistent yellowing of the skin, mucous membranes, and whites of the eyes (jaundice).

What causes delayed bilirubin elimination?

This may occur because of delayed or insufficient milk production by the mother or because of poor feeding by the newborn. This inadequate intake results in dehydration and fewer bowel movements for the newborn, which results in decreased bilirubin excretion from the body.

What is the most common cause of hyperbilirubinemia?

The predominant causes of conjugated hyperbilirubinemia are intrahepatic cholestasis and extrahepatic obstruction of the biliary tract, with the latter preventing bilirubin from moving into the intestines. Viruses, alcohol, and autoimmune disorders are the most common causes of hepatitis.

What causes jaundice in babies blood type?

A blood type incompatibility between the mother and baby is also a reason to track the newborn’s jaundice more closely. This exists when a mother has the blood type O (and therefore has antibodies against A and B cells) and her newborn is of blood type A or B.

How do you confirm kernicterus?

How is kernicterus diagnosed? Kernicterus is most often diagnosed in babies. One test that may be used to check bilirubin levels is a light meter. A doctor or nurse will check your baby’s bilirubin levels by placing the light meter on your baby’s head.

What level of bilirubin leads to kernicterus?

Kernicterus, or bilirubin encephalopathy, is bilirubin-induced neurological damage, which is most commonly seen in infants. It occurs when the unconjugated bilirubin (indirect bilirubin) levels cross 25 mg/dL in the blood from any event leading to decreased elimination and increased production of bilirubin.

What are the 3 main pathophysiologic causes of hyperbilirubinemia?

Causes of pathologic hyperbilirubinemia can be classified as due to (1) increased bilirubin load (i.e., pre-hepatic; either hemolytic or non-hemolytic processes), (2) impaired bilirubin conjugation (i.e., hepatic) or (3) impaired bilirubin excretion (i.e., post-hepatic).

What is unconjugated hyperbilirubinemia an indication of?

Unconjugated hyperbilirubinemia can result from an increased production, impaired conjugation, or impaired hepatic uptake of bilirubin, a yellow bile pigment produced from hemoglobin during erythrocyte destruction. It can also occur naturally in newborns. (See Pathophysiology and Etiology.)

What does high bilirubin indicate?

Elevated levels may indicate liver damage or disease. Higher than normal levels of direct bilirubin in your blood may indicate your liver isn’t clearing bilirubin properly. Elevated levels of indirect bilirubin may indicate other problems.

What are the risk factors of hyperbilirubinemia?

Common risk factors for hyperbilirubinemia include fetal-maternal blood group incompatibility, prematurity, and a previously affected sibling (Table 1). Cephalohematomas, bruising, and trauma from instrumented delivery may increase the risk for serum bilirubin elevation.

What is Kramer zone?

The progression of yellow discolouration of the skin from the head to the feet or cephalocaudal progression was done by using Kramer’s scale. The scale consists of 5 specific ‘dermal zones’ 1) head and neck, 2) upper trunk, 3) lower trunk and thighs, 4)arms & lower legs , 5) palms & soles.

What level of bilirubin is jaundice?

A level of bilirubin in the blood of 2.0 mg/dL can create jaundice. Jaundice is a yellow color in the skin, mucus membranes, or eyes.

How can a blood test detect jaundice?

A bilirubin test measures the amount of bilirubin in your blood. It’s used to help find the cause of health conditions like jaundice, anemia, and liver disease. Bilirubin is an orange-yellow pigment that occurs normally when part of your red blood cells break down.

What blood type is high risk for jaundice?

If a mother is O positive, for example, and the baby has blood type A or B, the mother may produce antibodies that destroy some of the newborn’s red blood cells. This results in an increased amount of bilirubin and can cause more severe jaundice requiring treatment.

What blood type is more prone to jaundice?

What are the indications of blood transfusion?

A brief summary of indications of blood transfusion is given in Table 1. Table 1 Summary of clinical indications of blood transfusion Open in a separate window Transfusion triggers Transfusion trigger is defined as that value of haemoglobin (Hb) below which RBC transfusion is indicated.

When should the decision to administer blood be taken?

The decision to administer blood should be taken after weighing the risks and benefits of blood transfusion against those of anaemia. A brief summary of indications of blood transfusion is given in Table 1. Table 1 Summary of clinical indications of blood transfusion

What are the chances of a reaction to a blood transfusion?

The chance of having a reaction to a blood transfusion is very small. The most common adverse reactions from blood transfusions are allergic and febrile (fever–associated) reactions, which make up over half of all adverse reactions reported.

What is the normal Hb level for RBC transfusion?

Traditionally, the rule of “10/30” was followed for RBC transfusion, according to which a Hb level of 10 g/dl or a haematocrit of 30% was recommended in surgical patients. Over the years, the trigger for transfusion has become more conservative or restrictive.