A client with a history of kidney stones is prescribed a thiazide diuretic. The nurse should monitor the client's laboratory values for which electrolyte imbalance?

A. Severe back pain can be a symptom of kidney stones, but it is not the most common one.

B. This is the correct answer. Hematuria, or blood in the urine, is the most common symptom of kidney stones. The blood may be visible or microscopic.

C. Frequent urination can be a symptom of kidney stones, but it is not the most common one.

D. Sudden weight loss is not a symptom commonly associated with kidney stones.

A. Uric acid stones may cause pain, but they do not typically present with costovertebral angle tenderness. Uric acid stones are more likely to be associated with gout and hyperuricemia.

B. Calcium oxalate stones are common and can cause pain, but they do not typically cause costovertebral angle tenderness. They are more likely to cause localized pain in the back or side.

C. This is the correct answer. Struvite stones, also known as infection stones, can cause severe pain that radiates to the back and lower abdomen. They are often associated with urinary tract infections, and the presence of an infection can lead to costovertebral angle tenderness.

D. Cystine stones are rare and are more likely to cause chronic, dull pain rather than sudden and severe pain with tenderness.