A nurse is caring for a 6-month-old infant who has a prescription for clear liquids by mouth after a repair of an intussusception. Which of the following fluids should the nurse select for the infant?

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.

Choice A reason: Tracheoesophageal fistula is a congenital anomaly that results from an abnormal connection between the trachea and the esophagus. It causes respiratory distress, choking, coughing, and cyanosis during feeding, and increased risk of aspiration pneumonia.

Choice B reason: Inguinal hernia is a protrusion of abdominal organs through the inguinal canal into the scrotum or labia. It causes a bulge in the groin area that may increase in size with crying or straining. It may also cause pain, vomiting, and impaired blood flow to the herniated tissue.

Choice C reason: Intussusception is a telescoping of one segment of the bowel into another, causing obstruction and impaired blood supply. It causes a palpable mass in the upper right quadrant, stools mixed with blood and mucus (resembling currant jelly), abdominal pain, vomiting, and shock.

Choice D reason: Hypertrophic pyloric stenosis is a narrowing of the pyloric sphincter due to hypertrophy of the surrounding muscle. It causes projectile vomiting, dehydration, weight loss, and a palpable olive-shaped mass in the upper right quadrant.