Why should a patient avoid eating a large meal before a urinalysis?

A patient should avoid eating a large meal before a urinalysis because it can affect the concentration of substances in the urine, potentially leading to inaccurate results. Large meals may also influence blood sugar and electrolyte levels, which could skew the test outcomes. Additionally, certain foods can alter the odor or color of urine, complicating the interpretation of the analysis. For the most accurate results, fasting or sticking to a light meal is generally recommended.