What should be done with the CCF after collecting a urine sample?

After collecting a urine sample, it is essential for the collector to complete and sign the Custody and Control Form (CCF). This form documents the chain of custody for the sample and provides critical information regarding the collection process, including the identity of the donor, the date and time of collection, and any relevant observations made during the process. The collector's signature confirms that they have adhered to the proper collection procedures and ensures accountability for the sample's handling.

Completing and signing the CCF is a vital part of the process, as it helps maintain the integrity of the testing process. Proper documentation is crucial in ensuring that the results can be trusted and that the testing follows legal and regulatory requirements.

The other options are not appropriate actions after collecting a urine sample. Discarding the CCF would eliminate a necessary part of the documentation needed for testing and result tracking. Having only the donor sign the form does not establish the accountability of the collector or confirm the legitimacy of the process. Maintaining the confidentiality of the form is important, but simply keeping it confidential by the donor does not fulfill the requirement of proper completion and signing by the collector.