12 Questions
What are considered normal values for unconjugated bilirubin?
0.2 to 1.4 mg/dL
Which of the following is NOT a risk factor for neonatal jaundice?
Increased liver function
What is the main purpose of using Phenobarbital in the therapeutic management of neonatal jaundice?
To promote liver enzymes and protein synthesis
Which condition is associated with jaundice appearing after 72 hours of age?
Breast milk jaundice
What is the main cause of physiological jaundice in newborns?
Increased bilirubin load
Which of the following is a characteristic feature of pathological jaundice in newborns?
Direct bilirubin less than 2 mg/dl
What distinguishes physiological jaundice from pathological jaundice in newborns?
Jaundice persisting after 14 days
Which condition is NOT a cause of neonatal jaundice appearing within 24 hours of birth?
Premature birth
What is neonatal jaundice characterized by?
Yellowish discoloration of the skin, sclerae, mucous membranes, and nails
What does 'vernix caseosa' refer to?
White cheesy coating on newborn skin
What is the definition of 'hyperbilirubinemia' in neonates?
Excessive levels of bilirubin causing yellowish discoloration of the skin
What is acrocyanosis commonly associated with in newborns?
Cyanosis of hands and feet
Study Notes
Normal Values and Risk Factors
- Normal values for unconjugated bilirubin are 0.3-1.4 mg/dL
- Breastfeeding is NOT a risk factor for neonatal jaundice
Phenobarbital and Jaundice Management
- The main purpose of using Phenobarbital is to increase the conjugation of bilirubin and enhance its excretion
Characteristics of Jaundice
- Jaundice appearing after 72 hours of age is associated with sepsis
- Physiological jaundice in newborns is mainly caused by the breakdown of fetal hemoglobin
- A characteristic feature of pathological jaundice in newborns is jaundice that appears within 24 hours of birth
- Physiological jaundice is distinguished from pathological jaundice by the timing of onset, severity, and underlying cause
- Hyperbilirubinemia in neonates is defined as a total serum bilirubin level >2.5 mg/dL
Neonatal Characteristics
- Neonatal jaundice is characterized by yellow discoloration of the skin and mucous membranes
- Vernix caseosa refers to a thick, cheesy substance that covers the skin of newborns
- Acrocyanosis is commonly associated with cold stress in newborns
Test your knowledge on the causes of jaundice in newborns, including physiological factors, infections, and risk factors. Explore different conditions that can lead to jaundice within the first 72 hours of life and after 72 hours of age.
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