Final answer:
Ciprofloxacin is the most likely medication to be prescribed prophylactically for a child with spina bifida (myelomeningocele) who has a neurogenic bladder.
Step-by-step explanation:
The nurse should anticipate that Ciprofloxacin is the most likely medication to be prescribed prophylactically for a child with spina bifida (myelomeningocele) who has a neurogenic bladder.
Ciprofloxacin is a fluoroquinolone antibiotic, and it is commonly used to treat bacterial cystitis. Bacterial cystitis is a common complication in individuals with neurogenic bladder, which is commonly seen in children with spina bifida.
Other medications mentioned in the options, such as Sulfisoxazole, Furosemide, and Phenazopyridine, are not typically prescribed prophylactically for neurogenic bladder in children with spina bifida.