A client with a history of kidney stones is prescribed allopurinol. The nurse should recognize that this medication is primarily used to:

A. Sharp, stabbing pain in the lower abdomen is not typically associated with kidney stones. Kidney stone pain is usually felt in the back and flank regions of the body.

B. This is the correct answer. The pain caused by kidney stones is often described as a dull ache in the upper back and flank region, usually on the affected side where the kidney is located.

C. Burning sensation during urination is more commonly associated with urinary tract infections or inflammation of the urethra, not kidney stones.

D. Constant, generalized abdominal discomfort is not a specific symptom of kidney stones. Kidney stone pain is usually more localized to the back and flank regions.

A. Limiting fluid intake to 1 liter per day is not recommended to prevent kidney stone formation. Adequate hydration is essential to

help prevent stone formation, as it helps dilute the urine and reduce the concentration of minerals that can lead to stone formation.

B. Decreasing dietary fiber intake is not a preventive measure for kidney stones. In fact, increasing dietary fiber intake can be beneficial for overall health.

C. Reducing calcium intake from all sources is not recommended to prevent kidney stones. In some cases, reducing dietary calcium intake can actually increase the risk of certain types of kidney stones.

D. This is the correct answer. Increasing citric acid intake can help prevent certain types of kidney stones, such as calcium oxalate stones. Citric acid helps to bind calcium in the urine, reducing the risk of stone formation. Citric acid can be found in citrus fruits and juices, and the nurse may advise the client to include more of these foods in their diet.