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Causes of Jaundice in Newborns Quiz

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Questions and Answers

What are considered normal values for unconjugated bilirubin?

0.5 to 2.0 mg/dL

1.0 to 3.0 mg/dL

0.2 to 1.4 mg/dL (correct)

2.5 to 4.0 mg/dL

Which of the following is NOT a risk factor for neonatal jaundice?

Increased liver function (correct)

Non-optimal nursing

Cephalhematoma/bruising

Deficiency of G6PD

What is the main purpose of using Phenobarbital in the therapeutic management of neonatal jaundice?

To promote liver enzymes and protein synthesis (correct)

To treat infections

To prevent dehydration

To reduce serum bilirubin levels

Which condition is associated with jaundice appearing after 72 hours of age?

Breast milk jaundice Signup and view all the answers

What is the main cause of physiological jaundice in newborns?

Increased bilirubin load Signup and view all the answers

Which of the following is a characteristic feature of pathological jaundice in newborns?

Direct bilirubin less than 2 mg/dl Signup and view all the answers

What distinguishes physiological jaundice from pathological jaundice in newborns?

Jaundice persisting after 14 days Signup and view all the answers

Which condition is NOT a cause of neonatal jaundice appearing within 24 hours of birth?

Premature birth Signup and view all the answers

What is neonatal jaundice characterized by?

Yellowish discoloration of the skin, sclerae, mucous membranes, and nails Signup and view all the answers

What does 'vernix caseosa' refer to?

White cheesy coating on newborn skin Signup and view all the answers

What is the definition of 'hyperbilirubinemia' in neonates?

Excessive levels of bilirubin causing yellowish discoloration of the skin Signup and view all the answers

What is acrocyanosis commonly associated with in newborns?

Cyanosis of hands and feet Signup and view all the answers

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

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Description

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.