A 7-year-old child presents with cough and nasal congestion lasting more than 10 days. The parent reports that the child initially improved but then developed fever > 102°F and purulent nasal discharge for over 3 days. What is the most likely diagnosis?

A 3-year-old child has bilateral pedal edema, flaky paint dermatosis, and sparse, easily pluckable hair. The most likely diagnosis is:

A 1-year-old infant on prolonged exclusive cow’s milk feeding presents with pallor and irritability. Lab findings: microcytic hypochromic anemia. What is the likely cause?

A 6-month-old baby presents with cough, wheeze, and difficulty breathing. There is hyperinflated chest and bilateral crepitations. What is the most common cause?

A 9-year-old child has fever, joint pain, and carditis. Which of the following is a major criterion in Jones criteria?

The study of disease and its causes is called:

A 2-month-old infant has a continuous murmur best heard at the left infraclavicular area. Bounding pulses are present. What is the most likely diagnosis?

A 3-year-old child presents with fever, cough, coryza, conjunctivitis, and maculopapular rash starting behind the ears. What is the pathognomonic sign?

A 5-year-old boy presents with periorbital edema, proteinuria, and hypoalbuminemia. Most likely cause is:

A 6-year-old has night blindness and Bitot’s spots. What is the appropriate treatment?

A 3-day-old full-term baby presents with yellow discoloration of the eyes. The baby is active and feeding well. Total bilirubin is 10 mg/dL. The most likely diagnosis is:

A newborn develops jaundice within 12 hours of life. What is the most likely cause?

A 2-hour-old term baby born by cesarean section develops tachypnea and mild retractions. O₂ saturation is normal and chest X-ray shows prominent vascular markings and fluid in fissures. Most likely diagnosis:

A 5-year-old boy presents with painful limp, fever, and refusal to move his right hip. ESR and CRP are elevated. X-ray is normal.Which is the most likely diagnosis?

A 6-year-old presents with fever, sore throat, and a sandpaper-like rash on the trunk. Tongue is red and prominent papillae are seen.What is the likely organism?

A 7-year-old develops fever for 3 days followed by a rash that starts on the trunk and spreads to the face and limbs. The rash fades in 24 hours. There is no Koplik spot and the child appears well.What is the most likely diagnosis?

A newborn does not cry after birth. The first step in resuscitation is:

A 32-week preterm baby develops recurrent apnea and cyanosis. Which of the following best explains the cause?

A 2-day-old newborn has poor feeding, lethargy, and temperature instability. Which of the following investigations is most diagnostic?