Metabolic Studies for Stone

Specimen Required

24 Hrs urine & Serum

Fasting Required

Purpose of the Test

Metabolic studies for stones are laboratory tests that evaluate the chemical composition of kidney stones, as well as the levels of certain substances in the urine, to help identify the underlying causes of stone formation. These tests can help determine the risk of future stone formation and guide treatment options.

When this test is required

Metabolic studies for stones are typically requested for people who have a history of recurrent kidney stones or who have formed a stone for the first time. The tests may also be recommended for people with a family history of kidney stones, certain medical conditions that increase the risk of stone formation, or those who are undergoing certain medical treatments that may increase the risk of stone formation.

What the Test Detects

Metabolic studies for stones involve testing the chemical composition of kidney stones and the levels of certain substances in the urine. The following tests may be included in a metabolic stone panel: Urine volume: Measures the amount of urine produced in a 24-hour period , pH: Measures the acidity or alkalinity of the urine , Calcium: Measures the amount of calcium in the urine. , Oxalate: Measures the amount of oxalate in the urine , Citrate: Measures the amount of citrate in the urine , Uric acid: Measures the amount of uric acid in the urine , Cystine: Measures the amount of cystine in the urine.

Preparation for the Test

To prepare for metabolic studies for stones, it is important to drink plenty of fluids in the days leading up to the test to ensure adequate urine production. Certain medications and dietary supplements may also need to be avoided prior to the test, as they can affect the results. Your healthcare provider will provide specific instructions on how to prepare for the test.

Sample Requirements

The sample required for metabolic studies for stones typically involves a 24-hour urine collection, during which all urine is collected over a 24-hour period. This allows for a more accurate assessment of the levels of various substances in the urine.

Additional Notes

It is important to follow your healthcare provider’s instructions for collecting and storing the urine sample, as well as any dietary or medication restrictions prior to the test. Additionally, it is important to note that metabolic studies for stones may not identify the underlying cause of all types of kidney stones, and additional testing or evaluation may be needed.

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