Stone Analysis

A nidus refers to the central core or nucleus of a kidney stone or other calculus formation. This analysis identifies the composition and mass of the stone's innermost material, which is chemically distinct from outer layers. Understanding the nidus composition helps determine the underlying cause of stone formation—whether due to calcium oxalate, uric acid, infection, or other factors. This information is crucial for preventing recurrent stone formation through diet and lifestyle modifications.

This test detects IgE antibodies against walnut allergens in your blood. Tree nut allergies like walnuts can cause reactions ranging from oral itching and swelling to severe anaphylaxis. A positive result indicates a walnut allergy and suggests caution with other tree nuts due to cross-reactivity. This test helps confirm a suspected allergy and is essential for safe food choices and emergency preparedness, especially since tree nut allergies often persist throughout life.