Correct Answer: C

Rationale: Renal transplantation is the preferred method of treatment for children with end-stage renal disease, as it offers the best chance for a normal lifestyle compared to long-term dialysis. Transplantation can be performed at any age, and kidneys can come from adult donors as well.

Correct Answer: A

Rationale: Hemolytic uremic syndrome (HUS) typically presents with hematuria, anorexia, hypertension, and purpura due to the hemolytic anemia, thrombocytopenia, and renal failure that characterize this condition.

Correct Answer: C

Rationale: Proper perineal hygiene, including cleansing with water after voiding, is crucial in preventing UTIs in young girls. Avoiding public toilets and limiting baths are less effective than proper hygiene practices.

Correct Answer: D

Rationale: The correct answer is D, 'Small for gestational age.' A small for gestational age, or small-for-date, infant is any child whose intrauterine growth rate was slowed and whose birth weight falls below the 10th percentile on intrauterine growth curves. Choices A and B, 'Postterm' and 'Postmature,' refer to infants born after 42 weeks of gestational age regardless of birth weight, and do not specifically address growth rate. Choice C, 'Low birth weight,' refers to infants with a birth weight less than 2500 g (5.5 pounds) regardless of gestational age, which is a different classification compared to being small for gestational age.

Correct Answer: D

Rationale: Increased urine output is often the first sign that acute glomerulonephritis is improving, as it indicates a reduction in fluid retention and better kidney function. Stabilization of blood pressure and other symptoms typically follow.