Identify the minimum amount of specimen needed to conduct urinalysis testing.

The minimum amount of specimen needed to conduct urinalysis testing is 30 mL. This volume ensures that there is sufficient sample for performing all necessary analyses, including screening for drugs, measuring specific gravity, and evaluating for any other potential anomalies in the urine. Collecting a minimum of 30 mL also accommodates the possibility of needing retests or additional testing without compromising the integrity of the sample. Collecting less than this volume may lead to limitations in testing and could potentially result in inconclusive findings, which could affect the overall assessment of the individual's health or compliance with regulations.