What is the typical presentation of pyloric stenosis in infants?

Correct Answer: B

Rationale: The correct answer is B: Projectile vomiting. Pyloric stenosis in infants typically presents with projectile vomiting, which is forceful and projective in nature. This occurs due to the obstruction at the pylorus, leading to the stomach being unable to empty properly. Choices A, C, and D are incorrect. Bilious vomiting is more commonly associated with intestinal obstruction, blood in stools can occur in conditions such as necrotizing enterocolitis or allergic colitis, and failure to thrive is a nonspecific finding that can be seen in various pediatric conditions.

Correct Answer: C

Rationale: Weight is the most accurate indicator of fluid balance in pediatric patients. Changes in weight reflect shifts in body fluid levels more directly compared to other parameters. Blood pressure and heart rate may be affected by various factors other than fluid balance. While urine output is important in assessing renal function, it may not provide a comprehensive picture of overall fluid balance in pediatric patients.

Correct Answer: A

Rationale: The correct answer is Antipyretics. Febrile seizures in children are usually associated with fever. The first-line treatment aims to reduce fever, which can help prevent febrile seizures. Antipyretics like acetaminophen or ibuprofen are commonly used for this purpose. Anticonvulsants, while used for treating seizures, are not typically the first-line treatment for febrile seizures as they are usually self-limited and resolve on their own. Cooling blankets can be used to lower body temperature in cases of hyperthermia but are not the primary treatment for febrile seizures. IV fluids may be administered in cases of dehydration due to fever or if the child cannot tolerate oral intake, but they are not the first-line treatment for febrile seizures.

Correct Answer: A

Rationale: The 'sunset sign,' characterized by downward-driven eyes, is most commonly associated with hydrocephalus. This condition causes increased intracranial pressure, leading to the eyes appearing to be forced downward. Meningitis (choice B) typically presents with symptoms such as fever, headache, and a stiff neck, but not the 'sunset sign.' Cerebral palsy (choice C) is a group of disorders affecting movement and muscle coordination, not directly related to the 'sunset sign.' Encephalitis (choice D) is inflammation of the brain, which can cause symptoms like fever, headache, and confusion, but not the specific downward eye gaze seen in the 'sunset sign.'

Correct Answer: C

Rationale: The correct answer is C: Hyperlipidemia. Children with nephrotic syndrome often present with hyperlipidemia due to altered lipid metabolism, making it a primary concern in these patients. Hypotension (choice A) is not a primary concern in nephrotic syndrome. Hyperkalemia (choice B) and hypocalcemia (choice D) are not typically associated with nephrotic syndrome and are less likely to be primary concerns in these patients.