Final answer:
The needle holder from an evacuated tube collection system is disposed of with the collection needle in a sharps container, following standard safety protocols to prevent injuries and contamination.
Step-by-step explanation:
The needle holder that is part of the evacuated tube collection system should be disposed of as a unit with the collection needle into a sharps container. This is the standard protocol to ensure that there is no risk of needlestick injuries or contamination, as the needle and the holder are considered a single biohazardous entity after use. Proper disposal helps maintain a safe environment for healthcare professionals and complies with regulatory guidelines for biohazardous waste.