SOCRA CCRP Practice Exam Prep – Free Practice Tests & Study Guide

The insurance (if applicable), regulatory authority approval/notification, and lab normal ranges are all essential documents that must be kept before a trial begins. These documents are necessary for legal and compliance purposes and to ensure that the trial is conducted ethically and accurately. While a screening log may also be an important document for keeping track of participants and their eligibility for the trial, it is not listed as an essential document and may vary depending on the specific trial protocol. Therefore, the other options are incorrect as they are all necessary documents for the trial, while a screening log is not specifically listed as essential.