Question 1:
A 5-year-old child presents with a fever, sore throat, and a rash that
is blanching and maculopapular. Which of the following is the most
likely diagnosis?
A) Measles
B) Scarlet fever
C) Rubella
D) Fifth disease
Answer: A) Measles
Rationale: Measles presents with a prodrome of fever, cough, coryza,
conjunctivitis, and a characteristic maculopapular rash. The rash starts
on the face and spreads downward, and it typically blanches when
pressed.
Question 2:
Which of the following is the most common cause of bronchiolitis in
children?
A) Influenza
B) Respiratory syncytial virus (RSV)
C) Parainfluenza virus
D) Rhinovirus
Answer: B) Respiratory syncytial virus (RSV)
Rationale: RSV is the most common cause of bronchiolitis, particularly
in infants and young children. It causes inflammation of the small
airways, leading to wheezing, difficulty breathing, and cough.
,Question 3:
A 2-month-old infant presents with jaundice and poor feeding. On
examination, the liver is palpable 4 cm below the costal margin, and
the infant has hepatomegaly. What is the most likely diagnosis?
A) Physiological jaundice
B) Breast milk jaundice
C) Neonatal hepatitis
D) Galactosemia
Answer: C) Neonatal hepatitis
Rationale: Neonatal hepatitis presents with jaundice, hepatomegaly, and
poor feeding in an infant. It can be caused by viral infections or
metabolic disorders.
Question 4:
A 3-year-old child is brought to the emergency department with a
history of sudden onset of wheezing, difficulty breathing, and a
"barking" cough. What is the most likely diagnosis?
A) Asthma
B) Epiglottitis
C) Croup
D) Pneumonia
Answer: C) Croup
Rationale: Croup, caused by parainfluenza virus, presents with a
characteristic "barking" cough, stridor, and respiratory distress, often
worsened at night.
, Question 5:
Which of the following vaccines is recommended for all infants at 2
months of age?
A) Measles, mumps, rubella (MMR)
B) Hepatitis B
C) Diphtheria, tetanus, and acellular pertussis (DTaP)
D) Rotavirus
Answer: C) Diphtheria, tetanus, and acellular pertussis (DTaP)
Rationale: DTaP is part of the routine immunization schedule and is
administered to infants at 2, 4, and 6 months of age.
Question 6:
A 7-year-old boy is diagnosed with ADHD. Which of the following is
the first-line treatment?
A) Behavioral therapy
B) Methylphenidate
C) Atomoxetine
D) Clonidine
Answer: B) Methylphenidate
Rationale: Methylphenidate, a stimulant medication, is the first-line
pharmacologic treatment for attention-deficit hyperactivity disorder
(ADHD). It is often combined with behavioral therapy for optimal
outcomes.
Question 7:
A 5-year-old child presents with a fever, sore throat, and a rash that
is blanching and maculopapular. Which of the following is the most
likely diagnosis?
A) Measles
B) Scarlet fever
C) Rubella
D) Fifth disease
Answer: A) Measles
Rationale: Measles presents with a prodrome of fever, cough, coryza,
conjunctivitis, and a characteristic maculopapular rash. The rash starts
on the face and spreads downward, and it typically blanches when
pressed.
Question 2:
Which of the following is the most common cause of bronchiolitis in
children?
A) Influenza
B) Respiratory syncytial virus (RSV)
C) Parainfluenza virus
D) Rhinovirus
Answer: B) Respiratory syncytial virus (RSV)
Rationale: RSV is the most common cause of bronchiolitis, particularly
in infants and young children. It causes inflammation of the small
airways, leading to wheezing, difficulty breathing, and cough.
,Question 3:
A 2-month-old infant presents with jaundice and poor feeding. On
examination, the liver is palpable 4 cm below the costal margin, and
the infant has hepatomegaly. What is the most likely diagnosis?
A) Physiological jaundice
B) Breast milk jaundice
C) Neonatal hepatitis
D) Galactosemia
Answer: C) Neonatal hepatitis
Rationale: Neonatal hepatitis presents with jaundice, hepatomegaly, and
poor feeding in an infant. It can be caused by viral infections or
metabolic disorders.
Question 4:
A 3-year-old child is brought to the emergency department with a
history of sudden onset of wheezing, difficulty breathing, and a
"barking" cough. What is the most likely diagnosis?
A) Asthma
B) Epiglottitis
C) Croup
D) Pneumonia
Answer: C) Croup
Rationale: Croup, caused by parainfluenza virus, presents with a
characteristic "barking" cough, stridor, and respiratory distress, often
worsened at night.
, Question 5:
Which of the following vaccines is recommended for all infants at 2
months of age?
A) Measles, mumps, rubella (MMR)
B) Hepatitis B
C) Diphtheria, tetanus, and acellular pertussis (DTaP)
D) Rotavirus
Answer: C) Diphtheria, tetanus, and acellular pertussis (DTaP)
Rationale: DTaP is part of the routine immunization schedule and is
administered to infants at 2, 4, and 6 months of age.
Question 6:
A 7-year-old boy is diagnosed with ADHD. Which of the following is
the first-line treatment?
A) Behavioral therapy
B) Methylphenidate
C) Atomoxetine
D) Clonidine
Answer: B) Methylphenidate
Rationale: Methylphenidate, a stimulant medication, is the first-line
pharmacologic treatment for attention-deficit hyperactivity disorder
(ADHD). It is often combined with behavioral therapy for optimal
outcomes.
Question 7:
