Preparation is key for accurate results. Patients should be instructed to:
1. Start the collection on an empty bladder: The first voiding of the day should be discarded, and the timing should begin thereafter. 2. Follow dietary and medication guidelines: Some substances can interfere with test results. Patients may need to avoid certain foods or medications during the collection period. 3. Maintain hydration: Normal fluid intake should be maintained unless otherwise directed by the healthcare provider.
