A nurse is caring for a client who had a kidney stone removed through percutaneous nephrolithotomy (PCNL). The nurse should closely monitor the client for which potential complication?

A. Excessive consumption of fruits and vegetables is not a primary cause of kidney stones. Some specific types of fruits and vegetables may contribute to stone formation, but it is not a general cause.

B. While genetic factors and family history can play a role in kidney stone formation, they are not the primary cause. The presence of minerals and salts in the urine is the main contributing factor.

C. An overactive bladder and frequent urination are not direct causes of kidney stone formation. They may be related to other urinary conditions but not to the formation of kidney stones.

D. This is the correct answer. Kidney stones are formed when certain minerals and salts in the urine form solid crystals that can clump together and grow into stones.

A. Avoiding all dairy products is not a recommended prevention strategy for kidney stones. In fact, adequate dietary calcium may be beneficial for reducing the risk of certain types of stones.

B. Increasing dietary calcium intake, especially from food sources, may help prevent certain types of kidney stones, such as calcium oxalate stones.

C. Reducing fluid intake is not a recommended prevention strategy for kidney stones. Inadequate hydration can actually increase the risk of stone formation.

D. This is the correct answer. Drinking plenty of water and staying hydrated is one of the most effective ways to prevent kidney stones. Adequate hydration helps dilute urine and reduce the concentration of minerals that can lead to stone formation.