The nurse is monitoring a child with hydrocephalus who received a repeat ventriculoperitoneal (VP) shunt yesterday. Which assessment finding indicates to the nurse that the shunt is functioning normally?

Answer: A. Biopsy may rupture the encapsulated tumor and cause the cancer cells to spread.

Rationale:

A) Biopsy may rupture the encapsulated tumor and cause the cancer cells to spread: This is the primary reason why surgery is performed before a biopsy in cases of Wilms tumor. The tumor is usually encapsulated, and performing a biopsy could risk breaking the capsule, leading to the dissemination of cancer cells into surrounding tissues, which can worsen the prognosis.

B) Metal clips are surgically applied at the tumor site for exact marking for radiation: While marking the tumor site for radiation is important, it is not the primary reason for performing surgery before a biopsy. The main concern is about the potential for cancer cell spread during a biopsy procedure.

C) Surgery is necessary to stage the tumor and determine metastasis to other sites: Although staging is a critical aspect of cancer management, the urgency of avoiding tumor rupture and subsequent spread is more pressing in this context. The surgery may assist in staging, but that is not the primary reason for immediate surgical intervention.

D) The surgery provides a visualization of other pathology and dysfunction of the kidney: While the surgical procedure may provide additional information about the kidney's condition, the most significant concern regarding Wilms tumor is preventing tumor rupture and the consequent spread of cancer cells, making this option less relevant.

Biliary atresia is a condition that can cause jaundice in newborns and infants, and it can also lead to tea-colored urine due to the presence of bilirubin in the urine. Infants with biliary atresia require further assessment and treatment, including possible surgery, to prevent liver damage and other complications.

A. Intussusception is a condition in which a part of the intestine folds into itself, causing an obstruction, but it does not typically present with jaundice or tea-colored urine.

C. Hirschsprung's disease is a congenital condition that affects the large intestine and can cause bowel obstruction, but it also does not typically present with jaundice or tea-colored urine.

D. Huntington's disease is a genetic neurological disorder that typically does not present in infants and does not cause jaundice or tea-colored urine.