A nurse is assessing a 1-year-old toddler who notices a large abdominal mass and pink-tinged urine on the diaper. Which of the following disorders should the nurse suspect?

Choice A reason: A child with Hirschsprung disease may require a temporary or permanent ostomy, depending on the extent of the bowel affected. The parent should be prepared for either outcome and not assume that the ostomy is only temporary.

Choice B reason: A child with Hirschsprung disease will not have normal bowel movements immediately after the surgery, as the bowel needs time to heal and adapt. The parent should be aware of the possible complications and follow-up care that the child will need.

Choice C reason: A child with Hirschsprung disease may need a feeding tube after the surgery to provide adequate nutrition and hydration while the bowel recovers. The parent should express interest in learning how to use and care for the feeding tube, as this indicates an understanding of the teaching.

Choice D reason: A child with Hirschsprung disease will not need a urinary catheter after the surgery, unless there is a specific indication for it. The parent should not confuse the feeding tube with the urinary catheter, as this indicates a lack of understanding of the teaching.

Choice A reason: Nephritic syndrome is a kidney disorder that causes inflammation and damage to the glomeruli, the filtering units of the kidneys. It can cause hematuria (blood in the urine), proteinuria (protein in the urine), hypertension (high blood pressure), and edema (swelling). However, it does not cause a palpable abdominal mass, which is a characteristic sign of Wilms tumor.

Choice B reason: Wilms tumor is a malignant tumor of the kidney that occurs mainly in children under 5 years of age. It can cause a large, firm, and painless abdominal mass, hematuria, abdominal pain, fever, and hypertension. It is the most common renal tumor in children and requires prompt diagnosis and treatment.

Choice C reason: Pyloric stenosis is a condition that causes narrowing of the pylorus, the outlet of the stomach. It can cause projectile vomiting, dehydration, weight loss, and a palpable olive-shaped mass in the upper abdomen. However, it does not cause hematuria or a large abdominal mass.

Choice D reason: Intussusception is a condition that occurs when a part of the intestine slides into another part, causing a blockage. It can cause abdominal pain, vomiting, bloody stools, and a sausage-shaped mass in the abdomen. However, it does not cause hematuria or a large abdominal mass.