Neonatology Practice Questions

Q: Which of the following statements about erythema toxicum is true?

Occurs mainly in the neonatal period. ***Occurs mainly in the neonatal period*** - **Erythema toxicum neonatorum (ETN)** is a condition that occurs **exclusively in the neonatal period**, typically appearing within the first 24-72 hours of life and rarely persisting beyond 2 weeks. - This is the **most comprehensive and defining feature** of ETN - the temporal occurrence defines the condition itself. - While other statements may be true, this captures the essential pathognomonic characteristic. *Common in term babies* - This statement is **medically accurate** - ETN affects 40-70% of full-term newborns. - However, it is **less specific** than stating it occurs in the neonatal period, as it doesn't capture the temporal aspect that defines the condition. - The condition is rare in preterm infants (<37 weeks gestation). *Lesions contain many eosinophils* - This statement is **also medically accurate** - Wright-stained smears of pustule contents characteristically show numerous **eosinophils**, which is a diagnostic feature. - Skin biopsy reveals subcorneal or intraepidermal pustules with eosinophils. - However, this is a **microscopic finding** rather than the primary clinical defining feature of the condition. *Can be life-threatening* - This is **FALSE** - ETN is a completely benign and self-limiting condition. - It resolves spontaneously without treatment and causes no systemic symptoms or complications. - No intervention is required beyond reassurance to parents.

Q: What is the recommended technique for performing chest compressions on a newborn?

Using two thumbs on the lower third of the sternum. ***Using two thumbs on the lower third of the sternum*** - The **two-thumb encircling technique** is recommended for newborns, especially when two rescuers are present, as it provides better coronary and cerebral perfusion pressures compared to the two-finger technique. - Compressions should be applied to the **lower third of the sternum**, just below the nipple line, to avoid injury to the xiphoid process. *Using two fingers on the middle third of the sternum* - The **two-finger technique** can be used if there is only one rescuer, but it is generally less effective in generating optimal perfusion than the two-thumb technique. - Compressing the **middle third of the sternum** is incorrect; the appropriate landmark is the lower third. *Using three fingers on the lower third of the sternum* - Using **three fingers** is generally not a standard recommended technique for neonatal CPR, as it can be difficult to achieve the correct depth and pressure distribution. - While the **lower third of the sternum** is correct, the multiple finger approach is less precise than the two-thumb or two-finger methods. *Using the palm on the lower third of the sternum* - Using the **palm of the hand** is too broad and provides excessive pressure for a fragile newborn's chest, risking serious injury to internal organs or ribs. - This technique is more appropriate for **adult CPR** and should not be applied to neonates.

Q: Which of the following is a typical hemoglobin level for term infants?

16 gm/dL. ***16 gm/dL*** - Term infants typically have **higher hemoglobin** levels at birth due to higher fetal erythropoiesis and late cord clamping. - The **normal range** for term neonates at birth is **14-20 gm/dL**, with an **average/typical value of 16-17 gm/dL**. - A hemoglobin level of **16 gm/dL** represents the **most typical** value for a healthy full-term neonate in the first few days of life. *8 gm/dL* - A hemoglobin level of **8 gm/dL** is significantly below the normal range for a term infant and would indicate **severe anemia**, requiring investigation and treatment. - This level would likely be associated with clinical signs of anemia such as **pallor**, **lethargy**, and **tachycardia**. *12 gm/dL* - While 12 gm/dL is a normal hemoglobin level for an older child or adult, it is **lower than expected** for a healthy term neonate. - A value of **12 gm/dL** might suggest mild anemia in a newborn or could be considered at the lower end of the normal range, perhaps seen a few weeks post-birth as physiological anemia develops. *18 gm/dL* - A hemoglobin level of **18 gm/dL** is within the **upper end of the normal range** for a term infant at birth, but is **higher than the typical average** of 16-17 gm/dL. - While not abnormal, it is less representative of the "typical" neonate compared to 16 gm/dL. - Levels significantly higher than this (e.g., above 20-22 gm/dL) could suggest **polycythemia**, which can lead to hyperviscosity syndrome.

Q: A newborn after prolonged labour is not breathing well and after 30 seconds of receiving 100% oxygen by bag and mask, heart rate is 88 beats per minute. What is the next step in management?

Continue oxygen and ventilation. ***Continue oxygen and ventilation*** - A **heart rate less than 100 beats per minute** in a newborn needing resuscitation indicates ongoing compromise, mandating continued positive pressure ventilation. - The goal is to achieve a heart rate above 100 bpm, regular breathing, and improving oxygen saturation, which requires continued support. *Discontinue oxygen and ventilation* - This action would be appropriate only if the newborn's heart rate was **above 100 bpm** and they were breathing effectively. - Discontinuing support when the heart rate is 88 bpm would lead to further deterioration and potentially irreversible harm. *Discontinue oxygen, continue ventilation* - Reducing oxygen to room air might be considered if the newborn's **heart rate improves** and oxygen saturations are appropriate, but not when the heart rate is still below 100 bpm. - Continuing ventilation without adequate oxygen when indicated could be detrimental, as the goal is to improve oxygen delivery to tissues. *Start chest compressions* - Chest compressions are indicated when the newborn's heart rate remains **below 60 beats per minute** despite 30 seconds of effective positive pressure ventilation. - In this scenario, the heart rate is 88 bpm, which is above the threshold for initiating chest compressions but still requires continued ventilatory support.

Q: Which of the following is the most characteristic feature of cephalhematoma?

Typically does not cross the suture lines.. ***Typically does not cross the suture lines*** - A **cephalhematoma** is a collection of blood between the skull bone and its periosteum, which is firmly attached at the **suture lines**. - This anatomical boundary prevents the blood from spreading across the sutures, resulting in a swelling that is **confined to a single cranial bone**. - This is the **most characteristic feature** that differentiates cephalhematoma from **caput succedaneum**, which crosses suture lines. *May not be present at birth and can appear later* - While it may not always be immediately apparent, cephalhematomas typically **develop within hours of birth** and are usually visible within the **first few days**. - Their presence is almost always directly related to **birth trauma** during delivery. - However, this temporal feature is **less specific** than the anatomical confinement. *Ventouse delivery is a risk factor* - While **ventouse delivery** (vacuum extraction) is a known **risk factor** for birth trauma, including **cephalhematoma**, this statement describes an **etiological factor**, not a characteristic *feature* of the condition itself. - The question asks for the **most characteristic *feature*** of a cephalhematoma, which is its anatomical confinement to one cranial bone. *None of the options* - This option is incorrect because the statement that a cephalhematoma **does not cross suture lines** is indeed the **hallmark characteristic** of this condition.

Q: Colour of stools in breastfed newborn is -

Golden. ***Golden*** - The typical color of stool in healthy, breastfed newborns is **golden-yellow** to **mustard-yellow**. - This color is due to the presence of **bilirubin**, a byproduct of red blood cell breakdown, which is normal in breastfed infants. *Green* - While occasional green stools can be normal, particularly with **iron supplementation** or a **foremilk-hindmilk imbalance**, consistently bright green stools without other causes might indicate rapid transit. - Darker green stools can also be seen in newborns passing **meconium** initially, but this typically transitions to yellow within the first few days. *Red* - **Red stools** in a newborn are a concerning sign, often indicating the presence of **blood** in the stool. - This could be due to anal fissures, infections, allergies, or other gastrointestinal pathologies, requiring medical evaluation. *Black* - **Black, tarry stools** in a newborn usually indicate the passage of **meconium**, which is normal in the first few days of life. - However, persistent black stools after the meconium phase can signify **upper gastrointestinal bleeding** (melena) and warrant immediate medical attention.

Q: What is the capacity of stomach at birth?

50 ml. ***50 ml*** - The **stomach capacity** of a full-term newborn baby is approximately **50 ml**. - This small capacity is why newborns feed frequently, as their stomachs can only hold a limited amount of milk at each feeding. *5 ml* - A capacity of 5 ml is far too small for a newborn baby and would not allow for adequate feeding and nutrition. - This volume is closer to what might be seen in very premature infants or for medication dosages, not total stomach capacity. *25 ml* - While 25 ml is a small volume, it is still significantly less than the typical **stomach capacity** of a healthy, full-term newborn. - A stomach of this size would necessitate even more frequent feedings than usually observed. *100 ml* - A stomach capacity of 100 ml at birth is too large for a typical newborn. - This volume is more characteristic of an infant several weeks to a few months old, as the stomach expands rapidly during the first few weeks of life.

Q: Which of the following statements is true for physiological jaundice in neonate?

Starts on 2nd day of life. ***Starts on 2nd day of life*** - Physiological jaundice typically appears after the first 24 hours of life, usually peaking between the 3rd and 5th day and resolving within 1-2 weeks. - This delay is due to the newborn infant's immature liver enzymes (like **UGT**) needing time to adequately conjugate bilirubin. *Occurs in the first 6 hours of delivery* - Jaundice occurring within the first 24 hours of life is considered **pathological** and requires immediate investigation to rule out serious conditions like hemolytic disease of the newborn. - **Physiological jaundice** is a diagnosis of exclusion and does not manifest so early. *Can cause kernicterus* - **Physiological jaundice** is by definition a benign, self-limiting condition with bilirubin levels that do not reach neurotoxic thresholds. - **Kernicterus** (bilirubin encephalopathy) occurs only with severe unconjugated hyperbilirubinemia seen in **pathological conditions**, not true physiological jaundice. - The distinction between physiological and pathological jaundice is crucial for clinical management. *Best treated by phototherapy* - Most cases of **physiological jaundice** are mild and resolve spontaneously without intervention, only requiring monitoring. - **Phototherapy** is reserved for cases where bilirubin levels exceed specific thresholds, which are higher than what is typically seen in normal physiological jaundice.

Q: What is the IV dose per kg of 1:10000 concentration of epinephrine in a pre-term baby in milliliters (ml)?

0.1 ml. ***0.1 ml*** - The recommended **IV dose of epinephrine** for a preterm baby in a 1:10,000 concentration is **0.01 mg/kg**. - Since 1:10,000 solution contains 0.1 mg/ml, the volume administered would be **0.1 mL/kg** (0.01 mg/kg divided by 0.1 mg/mL). *0.2 ml* - This dose would be twice the recommended starting dose, increasing the risk of **epinephrine side effects** such as **tachycardia** or **arrhythmias**. - **Overdosing** with epinephrine can lead to significant **cardiovascular complications**, which are particularly dangerous in fragile preterm infants. *0.3 ml* - This volume is three times the standard **epinephrine dose**, significantly increasing the likelihood of toxicity. - Delivering such a high dose could cause severe adverse effects including **hypertension**, **myocardial ischemia**, or **intracranial hemorrhage** in a preterm infant. *0.4 ml* - This dose is four times higher than what is typically recommended, posing a considerable threat to the infant's health. - Administering this much epinephrine would significantly elevate the risk of **life-threatening arrhythmias** and **cardiovascular collapse**.

Q: Which of the following statements about Kangaroo Mother Care is false?

It is only applicable to mothers.. ***It is only applicable to mothers.*** - This statement is false because **Kangaroo Mother Care (KMC)** involves skin-to-skin contact, which can be provided by any adult caregiver, including the **father** or other family members, not exclusively the mother. - The benefits of KMC, such as **thermal regulation**, improved **bonding**, and **breastfeeding promotion**, are achieved regardless of whether the mother or another caregiver provides the contact. *Can also be provided by the father.* - This statement is true; **fathers** are increasingly recognized as important caregivers in providing **KMC**, offering similar benefits as when provided by the mother. - Involving fathers can enhance **parental bonding** and share the caregiving responsibilities for the infant, especially for **low birth weight** or **premature infants**. *It is especially beneficial for low birth weight infants.* - This statement is true; **KMC** is particularly recommended for **low birth weight (LBW)** infants, especially those weighing under 2500 grams, as it has been shown to reduce mortality and improve their health outcomes. - It helps stabilize **cardiorespiratory function**, promotes **weight gain**, and facilitates **exclusive breastfeeding** in these vulnerable infants. *It provides effective thermal control.* - This statement is true; **KMC** involves direct **skin-to-skin contact**, which helps regulate the infant's body temperature, preventing both **hypothermia** and **hyperthermia** more effectively than conventional incubators in some settings. - The caregiver's body acts as a **human incubator**, providing a stable and appropriate thermal environment for the infant.

Question 1

Which of the following statements about erythema toxicum is true?

Accepted Answer

Occurs mainly in the neonatal period

Answer

Common in term babies

Answer

Lesions contain many eosinophils

Answer

Can be life-threatening

Question 2

What is the recommended technique for performing chest compressions on a newborn?

Accepted Answer

Using two thumbs on the lower third of the sternum

Answer

Using two fingers on the middle third of the sternum

Answer

Using three fingers on the lower third of the sternum

Answer

Using the palm on the lower third of the sternum

Question 3

Which of the following is a typical hemoglobin level for term infants?

Accepted Answer

16 gm/dL

Answer

8 gm/dL

Answer

12 gm/dL

Answer

18 gm/dL

Question 4

A newborn after prolonged labour is not breathing well and after 30 seconds of receiving 100% oxygen by bag and mask, heart rate is 88 beats per minute. What is the next step in management?

Accepted Answer

Continue oxygen and ventilation

Answer

Discontinue oxygen and ventilation

Answer

Discontinue oxygen, continue ventilation

Answer

Start chest compressions

Question 5

Which of the following is the most characteristic feature of cephalhematoma?

Accepted Answer

Typically does not cross the suture lines.

Answer

Ventouse delivery is a risk factor

Answer

May not be present at birth and can appear later.

Answer

None of the options

Question 6

Colour of stools in breastfed newborn is -

Accepted Answer

Golden

Answer

Red

Answer

Green

Answer

Black

Question 7

What is the capacity of stomach at birth?

Accepted Answer

50 ml

Answer

5 ml

Answer

25 ml

Answer

100 ml

Question 8

Which of the following statements is true for physiological jaundice in neonate?

Accepted Answer

Starts on 2nd day of life

Answer

Occurs in the first 6 hours of delivery

Answer

Best treated by phototherapy

Answer

Can cause kernicterus

Question 9

What is the IV dose per kg of 1:10000 concentration of epinephrine in a pre-term baby in milliliters (ml)?

Accepted Answer

0.1 ml

Answer

0.3 ml

Answer

0.4 ml

Answer

0.2 ml

Question 10

Which of the following statements about Kangaroo Mother Care is false?

Accepted Answer

It is only applicable to mothers.

Answer

Can also be provided by the father.

Answer

It is especially beneficial for low birth weight infants.

Answer

It provides effective thermal control.

Neonatology — MCQs

Neonatology — MCQs

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