Pg Blazer - Online Test Series 29 - Paediatrics

1. The following features are true for tetralogy of Fallot, except:

Ventricular septal defect

Right ventricular hypertrophy

Atrial septal defect

Pulmonary stenosis

Components of Tetralogy of Fallot:
Pulmonary stenosis
Overriding aorta
Ventricular septal defect
Right ventricular hypertrophy

Explanation

Components of Tetralogy of Fallot:
Pulmonary stenosis
Overriding aorta
Ventricular septal defect
Right ventricular hypertrophy

2. The most common etiological agent for acute bronchiolitis in infancy is:

Influenza virus

Para influenza virus

Rhinovirus

Respiratory syncytial virus

Respiratory syncytial virus is responsible for more than 50% cases of bronchiolitis.

Explanation

Respiratory syncytial virus is responsible for more than 50% cases of bronchiolitis.

3. A 1 month old boy is referred for failure to thrive. On examination, he shows feature of congestive heart failure. The femoral pulses are feeble as compared to branchial pulses. The most likely clinical diagnosis is:

Congenital aortic stenosis

Coarctation of aorta

Patent ductus arteriosus

Congenital aortoiliac disease

Feeble femoral pulses compared to brachial pulse indicates coarctation of aorta.

Explanation

Feeble femoral pulses compared to brachial pulse indicates coarctation of aorta.

4. A malignant tumor of childhood, that metastasizes to bones most often is:

Wilm’s tumor

Neuroblastoma

Adrenal gland tumors

Granulosa cell tumor of ovary

60-70% of metastasis in case of neuroblastoma are skeletal metastasis.

Explanation

60-70% of metastasis in case of neuroblastoma are skeletal metastasis.

5. The earliest indicator of response after starting iron in a 6-year-old girl with iron deficiency is:

Increased reticulocyte count

Increased hemoglobin

Increased ferritin

Increased serum iron

Sequence of changes during correction of iron deficiency:
Clinical improvement in the child (increase in appetite, improvement in irritability)
Inital bone marrow response
Increased reticulocyte count
Haemoglobin levels return to normal
Body iron stores return to normal (ferritin levels)

Explanation

Sequence of changes during correction of iron deficiency:
Clinical improvement in the child (increase in appetite, improvement in irritability)
Inital bone marrow response
Increased reticulocyte count
Haemoglobin levels return to normal
Body iron stores return to normal (ferritin levels)

6. Late onset hemorrhagic disease of newborn is characterized by all of the following features except:

Usually occurs in cow-milk fed babies

Onset occurs at 4-12 week of age

Lntracranial hemorrhage can occur

Intramuscular vitamin K prophylaxis at birth has a protective role

Haemorrhagic disease of newborn is more common in breast milk fed babies. (Breast milk is a poor source of Vitamin K)

Explanation

Haemorrhagic disease of newborn is more common in breast milk fed babies. (Breast milk is a poor source of Vitamin K)

7. Ln which of the following conditions left atrium is not enlarged:

Ventricular septal defect

Atrial septal defect

Aortopulmonary window

Patent ductus arteriosus

Right atrium and ventricle is enlarged in ASD. Left atrium can enlarge once Eisenmenger’s syndrome develops.

Explanation

Right atrium and ventricle is enlarged in ASD. Left atrium can enlarge once Eisenmenger’s syndrome develops.

8. With reference to mumps which of the following is true?

Meningoencephalitis can precede parotitis

Salivary gland involvement is limited to the parotids

The patient is not infectious prior to clinical parotid enlargement

Mumps orchitis frequency leads to infertility

Meningoencephalitis can occur 1 week before onset of parotitis.

Explanation

Meningoencephalitis can occur 1 week before onset of parotitis.

9. Blalock and Taussig shunt is done between:

Aorta to pulmonary artery

Aorta to pulmonary vein

Subclavian artery to pulmonary vein

Subclavian vein to artery

Blalock and Taussig shunt is used in the surgical management of tetralogy of fallot. It is shunts blood from the subclavian artery to the pulmonary artery. That is not given among the list of options. As subclavian artery is a branch of aorta, the best answer would be ‘aorta to pulmonary artery.’

Explanation

Blalock and Taussig shunt is used in the surgical management of tetralogy of fallot. It is shunts blood from the subclavian artery to the pulmonary artery. That is not given among the list of options. As subclavian artery is a branch of aorta, the best answer would be ‘aorta to pulmonary artery.’

10. The most important determinant of prognosis in Wilms tumor:

Stage of disease

Loss of heterozygosity of chromsome lp

Histology

Age less than one year at presentation

Histology and stage of disease are important prognostic factors. But histology is more important.

Explanation

Histology and stage of disease are important prognostic factors. But histology is more important.