Which laboratory tests are commonly ordered in suspected kidney stones?

• A. Urinalysis and Basic Metabolic Panel
• B. Complete blood count alone
• C. Liver function tests only
• D. Coagulation panel only

Answer: (A)

In evaluating suspected kidney stones, you want tests that show both whether the urinary tract is affected by a stone and how well the kidneys are functioning. A urinalysis is essential because most stones cause some level of blood in the urine, and it can reveal crystals or signs of infection that would change management. A basic metabolic panel complements this by assessing kidney function (creatinine, BUN) and the body’s electrolyte and fluid status, which helps guide treatment decisions and hydration strategies. Together, these two tests give the most immediate, clinically relevant picture for suspected stones.

The other options don’t provide the same targeted information: a complete blood count alone isn’t specific to stones, liver function tests don’t address urinary tract stone issues, and a coagulation panel isn’t typically needed in initial stone evaluation.