Neonatology Practice Questions

Q: Which of the following APGAR score ranges indicates that a newborn is 'at risk'?

4-6. ***4-6*** - This range indicates **moderate depression** or some difficulty adapting to extrauterine life, representing the newborn **"at risk"** category. - Newborns with this score require **intervention** such as stimulation, oxygen administration, or assisted ventilation. - This is the classic definition of an "at risk" newborn who needs close monitoring and support but is not in critical condition. *7-10* - An APGAR score in this range indicates that the newborn is **healthy** or has minimal adaptations to extrauterine life, and is **NOT considered "at risk"**. - Scores of 7, 8, 9, or 10 at both 1 and 5 minutes are typical for **normal newborns**. - These babies require routine care without special interventions. *0-3* - This range indicates **severe asphyxia** or critical depression, where the newborn is in **life-threatening condition**. - This is beyond "at risk" - these babies require **immediate resuscitation** and are in critical danger. - A score of 0-3 at 5 minutes is associated with significantly increased neonatal mortality and risk of neurological damage. *Above 8* - This range (9-10) overlaps with the 7-10 category and indicates an **excellent, healthy newborn**. - Scores of 9 and 10 show no signs of depression and represent optimal adaptation to extrauterine life. - These newborns are definitely **NOT at risk**.

Q: An infant presents with hepatosplenomegaly and thrombocytopenia. Neuroimaging with CT shows periventricular calcifications. What is the most likely diagnosis?

Congenital cytomegalovirus infection. ***Congenital cytomegalovirus infection*** - **Periventricular calcifications** on neuroimaging are a classic and highly suggestive finding for congenital CMV infection. - **Hepatosplenomegaly** and **thrombocytopenia** are common systemic manifestations of congenital CMV, which can be severe. *Congenital rubella syndrome* - Rubella typically causes **sensorineural hearing loss**, ocular abnormalities (e.g., cataracts), and congenital heart defects (e.g., patent ductus arteriosus), rather than periventricular calcifications. - While hepatosplenomegaly and thrombocytopenia can occur, the specific brain calcification pattern points away from rubella. *Congenital herpes simplex virus infection* - HSV infection in neonates presents with a variety of symptoms, including skin vesicles, keratoconjunctivitis, and seizures. - Brain imaging often shows **focal necrosis** or **encephalitis**, not typically periventricular calcifications unless it's a very widespread and destructive process. *Congenital toxoplasmosis* - Congenital toxoplasmosis classic triad includes **chorioretinitis**, **hydrocephalus**, and **intracranial calcifications**, but these calcifications are typically scattered or diffuse rather than strictly periventricular. - While hepatosplenomegaly and thrombocytopenia can be present, the specific location of calcifications is a key differentiating factor.

Q: In a term baby who is 72 hours old, breastfeeding well, and has a bilirubin level of 14 mg/dL, which of the following statements is true?

Continue to breastfeed. ***Continue to breastfeed*** - A bilirubin level of **14 mg/dL at 72 hours of age** in a healthy, full-term, breastfeeding baby is usually within the range considered **physiological jaundice** and does not warrant stopping breastfeeding. - **Breastfeeding should continue** regardless of jaundice management, as interruption can cause a **decrease in milk supply** and may worsen jaundice by reducing bilirubin excretion through stool. - Continued breastfeeding (8-12 times per day) helps promote bilirubin clearance. *Exchange transfusion* - This is an **invasive procedure** reserved for very high bilirubin levels (typically **>20-25 mg/dL** in full-term infants depending on age and risk factors) or in cases of **acute bilirubin encephalopathy**. - A bilirubin level of 14 mg/dL is **well below the threshold** for exchange transfusion in a healthy term infant. *Phototherapy* - According to **AAP guidelines**, phototherapy thresholds are age-dependent: - At **72 hours of age**, phototherapy is typically considered at bilirubin levels **>15-18 mg/dL** in low-risk term infants. - At 14 mg/dL, **close monitoring** with repeat bilirubin measurement is appropriate, but phototherapy is generally **not yet indicated** for a healthy term infant without risk factors. *None of the options* - This option is incorrect because **continuing to breastfeed** is the appropriate and evidence-based management for this clinical scenario. - The other interventions (exchange transfusion, phototherapy) are **not indicated** at this bilirubin level and age in a healthy term infant.

Q: Cause of greenish-black stool in a neonate -

First intestinal discharge in newborns. ***First intestinal discharge in newborns*** - The greenish-black stool in a neonate is characteristic of **meconium**, which is the first intestinal discharge. - Meconium is composed of materials ingested during the fetal period, including **vernix caseosa**, fine hair (lanugo), **intestinal epithelial cells**, mucus, and biliary secretions. *Breakdown product of hemoglobin metabolism* - While hemoglobin breakdown products (like **bilirubin**) contribute to the color of stool, this option is too general and doesn't specify the unique nature of **meconium**. - Bilirubin is primarily responsible for the yellow color of later infant stools, not the initial greenish-black of meconium. *Urinary pigment found in normal excretion* - **Urinary pigments** (like urochrome) are responsible for the color of urine, not stool. - This option refers to a completely different bodily excretion system. *Hepatic pigment involved in bile production* - This option likely refers to **bilirubin**, which is a hepatic pigment involved in bile production and contributes to stool color. - However, it doesn't fully capture the complex composition and unique appearance of **meconium** as the *first* stool.

Q: A baby born at 34 weeks gestation weighs 3kg. Which of the following conditions is this child most likely to develop in the immediate postnatal period?

Anemia. ***Anemia*** - A 3kg baby at 34 weeks is **large for gestational age (LGA)** and often associated with maternal diabetes, leading to initial **polycythemia** due to chronic intrauterine hypoxia and increased erythropoietin production. - After birth, the excess red blood cells undergo rapid **hemolysis**, resulting in **anemia** in the immediate postnatal period as a recognized complication of LGA babies. *APH* - **Antepartum hemorrhage (APH)** is a maternal obstetric complication involving bleeding before delivery, not a condition that develops in the newborn. - This is a **maternal complication** that occurs during pregnancy, not a neonatal condition that the baby would present with after birth. *Diabetes* - While **maternal diabetes** is often the cause of fetal macrosomia, the newborn does not develop diabetes itself in the immediate postnatal period. - These babies are instead at risk for **hypoglycemia**, **respiratory distress**, and **polycythemia** due to fetal hyperinsulinemia, but not diabetes as a presenting condition. *None of the options* - This is incorrect because **anemia** is indeed a valid condition that LGA babies can develop through the **polycythemia-hemolysis cycle**. - While other complications like **hypoglycemia** are more statistically common, anemia remains a recognized sequela among LGA babies in the immediate postnatal period.

Q: All are true about congenital Toxoplasmosis EXCEPT which of the following?

Conjunctivitis. ***Conjunctivitis*** - **Conjunctivitis** is inflammation of the conjunctiva and is not a hallmark symptom of congenital toxoplasmosis. - While it can occur in an infant due to other causes, it is not specifically caused by *Toxoplasma gondii* infection. *Chorioretinitis* - **Chorioretinitis** is a classic ocular manifestation of congenital toxoplasmosis, leading to inflammation and scarring of the retina and choroid. - It can cause significant visual impairment and is a key component of the **classic triad** of symptoms. *Hydrocephalus* - **Hydrocephalus**, an abnormal accumulation of cerebrospinal fluid, is a severe neurological complication of congenital toxoplasmosis. - It results from obstruction of CSF flow due to inflammation or damage caused by the parasite in the brain. *Cerebral calcification* - **Cerebral calcifications** are highly suggestive of congenital toxoplasmosis, representing areas of brain tissue damage and healing where the parasite has been active. - These are typically visible on brain imaging and are a key diagnostic indicator.

Q: Which of the following methods is not recommended for resuscitating a newborn baby with a heart rate less than 60 beats per minute?

slapping the back. ***Slapping the back*** - This method is **contraindicated** and **harmful** for newborn resuscitation as it can cause trauma and does not effectively improve heart rate or ventilation. - Previous practices involving forceful stimulation are now recognized as unsafe and ineffective, with current guidelines emphasizing gentle stimulation or medical interventions. *Chest compression* - **Chest compressions** are indicated when a newborn's heart rate remains below **60 beats per minute** despite adequate ventilation with positive pressure ventilation (PPV). - This intervention helps to circulate oxygenated blood to vital organs and is a critical component of neonatal resuscitation for severe bradycardia. *Oxygen therapy* - **Oxygen therapy** with positive pressure ventilation (PPV) is the **first-line intervention** for newborns with heart rate below 60 bpm after initial steps. - It helps to improve oxygen saturation, support ventilation, and may improve heart rate before chest compressions are needed. *Tactile stimulation* - **Tactile stimulation**, such as gently rubbing the back or flicking the soles of the feet, is an initial step in newborn resuscitation for mild respiratory depression. - However, for a heart rate **below 60 bpm** (as in this question's scenario), tactile stimulation alone is **insufficient** and **not appropriate** - immediate positive pressure ventilation and chest compressions are required instead. - Tactile stimulation is only useful during initial assessment and for mild depression, not for established bradycardia requiring advanced resuscitation.

Q: Which of the following is a classic triad of congenital rubella syndrome?

Patent ductus arteriosus, cataracts, and deafness. ***Patent ductus arteriosus, cataracts, and deafness*** - This is the **classic triad** of congenital rubella syndrome, reflecting the damage caused by the rubella virus to the developing fetus's **heart, eyes, and ears**. - **Patent ductus arteriosus** is a common cardiac defect, **cataracts** affect vision, and **sensorineural deafness** is a prevalent auditory defect. *Hepatosplenomegaly, intellectual disability, and deafness* - While **deafness** is part of the rubella triad, **hepatosplenomegaly** and **intellectual disability** are more common features of other congenital infections like **cytomegalovirus (CMV)**, not the classic rubella triad. - **Intellectual disability** can occur with severe rubella, but it's not considered a core component of the classic diagnostic triad. *Chorioretinitis, multiorgan failure, and pneumonitis* - **Chorioretinitis** is a hallmark of congenital toxoplasmosis and CMV infection, not typically seen with congenital rubella. - **Multiorgan failure** and **pneumonitis** are severe, non-specific complications that can occur with various congenital infections but are not part of rubella's classic presentation. *None of the options* - This option is incorrect as the first option accurately describes the **classic triad of congenital rubella syndrome**.

Q: Further investigation is essential in a newborn with which of the following conditions?

Lens opacity. ***Lens opacity*** - A **lens opacity** in a newborn suggests congenital **cataracts**, which can lead to permanent vision impairment if not identified and treated early. - **Investigation is essential** to identify underlying causes such as **TORCH infections** (Toxoplasmosis, Rubella, CMV, HSV), **metabolic disorders** (galactosemia, Lowe syndrome), **genetic syndromes**, or **chromosomal abnormalities**. - Early detection and management are crucial to prevent **amblyopia** (lazy eye) and optimize visual development during the **critical period** of visual maturation. - Investigations include: TORCH titers, urine for reducing substances, metabolic screening, and genetic evaluation. *Erythema toxicum* - This is a common, **benign newborn rash** characterized by blotchy red macules and papules with central vesicles or pustules. - It typically resolves spontaneously within days to a few weeks and requires **no specific investigation or treatment**. *Vaginal bleed* - A small amount of **vaginal bleeding** in female newborns is usually due to the temporary withdrawal of maternal hormones (e.g., estrogen) after birth. - This is a **physiologic response** and generally self-resolves, requiring no further investigation unless excessive or prolonged. *Subconjunctival hemorrhage* - This occurs due to the rupture of tiny blood vessels in the eye during the birthing process, often associated with **vaginal delivery**. - It is a **benign condition** that resolves on its own within a couple of weeks and does not affect vision.

Q: A newborn presents with subconjunctival hemorrhage. The treatment is

No treatment. ***No treatment*** - **Subconjunctival hemorrhage** in a newborn is typically **benign** and **resolves spontaneously** within **1-2 weeks**. - It is often caused by the trauma of birth and does not require intervention. *Antibiotic eye drops* - These are indicated for **bacterial conjunctivitis** or to prevent bacterial infection, which is not the case here. - Using antibiotics without a bacterial indication is unnecessary and can contribute to **antibiotic resistance**. *Aspiration* - **Aspiration** is an invasive procedure and is **not indicated** for a subconjunctival hemorrhage, which is a collection of blood under the conjunctiva. - It could cause further damage or introduce infection. *Antibiotic and steroid drops* - **Steroid drops** are typically used to reduce **inflammation**, which is not the primary issue in a subconjunctival hemorrhage. - Like plain antibiotic drops, the **antibiotic component** is not necessary in the absence of infection.

Question 1

Which of the following APGAR score ranges indicates that a newborn is 'at risk'?

Accepted Answer

4-6

Answer

7-10

Answer

Above 8

Answer

0-3

Question 2

An infant presents with hepatosplenomegaly and thrombocytopenia. Neuroimaging with CT    shows periventricular calcifications. What is the most likely diagnosis?

Accepted Answer

Congenital cytomegalovirus infection

Answer

Congenital rubella syndrome

Answer

Congenital herpes simplex virus infection

Answer

Congenital toxoplasmosis

Question 3

In a term baby who is 72 hours old, breastfeeding well, and has a bilirubin level of 14 mg/dL, which of the following statements is true?

Accepted Answer

Continue to breastfeed

Answer

Exchange transfusion

Answer

Phototherapy

Answer

None of the options

Question 4

Cause of greenish-black stool in a neonate -

Accepted Answer

First intestinal discharge in newborns

Answer

Breakdown product of hemoglobin metabolism

Answer

Urinary pigment found in normal excretion

Answer

Hepatic pigment involved in bile production

Question 5

A baby born at 34 weeks gestation weighs 3kg. Which of the following conditions is this child most likely to develop in the immediate postnatal period?

Accepted Answer

Anemia

Answer

APH

Answer

Diabetes

Answer

None of the options

Question 6

All are true about congenital Toxoplasmosis EXCEPT which of the following?

Accepted Answer

Conjunctivitis

Answer

Hydrocephalus

Answer

Cerebral calcification

Answer

Chorioretinitis

Question 7

Which of the following methods is not recommended for resuscitating a newborn baby with a heart rate less than 60 beats per minute?

Accepted Answer

slapping the back

Answer

oxygen therapy

Answer

tactile stimulation

Answer

chest compression

Question 8

Which of the following is a classic triad of congenital rubella syndrome?

Accepted Answer

Patent ductus arteriosus, cataracts, and deafness

Answer

Hepatosplenomegaly, mental retardation, and deafness

Answer

Chorioretinitis, multiorgan failure, and pneumonitis

Answer

None of the options

Question 9

Further investigation is essential in a newborn with which of the following conditions?

Accepted Answer

Lens opacity

Answer

Vaginal bleed

Answer

Subconjunctival hemorrhage

Answer

Erythema toxicum

Question 10

A newborn presents with subconjunctival hemorrhage. The treatment is

Accepted Answer

No treatment

Answer

Antibiotic eye drops

Answer

Antibiotic and steroid drops

Answer

Aspiration

Neonatology — MCQs

Neonatology — MCQs

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