Problem: The Centers for Disease Control and Prevention (CDC) provides guidelines on safe injection practices. According to these guidelines, a vial must never be entered with a used syringe or needle. If a medication vial is used for more than one patient, the vial should not be kept or accessed in the immediate patient treatment area. This is to prevent inadvertent contamination of the vial through direct or indirect contact with potentially contaminated surfaces or equipment that could then lead to infections in subsequent patients.