Which task is NOT permissible under nurse delegation?

The task of performing sterile procedures is not permissible under nurse delegation because sterile techniques require a comprehensive understanding of infection control, anatomy, and specific skills that are typically beyond the scope of support staff who are generally delegated tasks. Nurse delegation is designed to allow unlicensed personnel to assist with certain activities under the supervision of a licensed nurse, but such tasks must be safe, routine, and straightforward. Sterile procedures introduce a higher level of risk due to the potential for infection and require precise execution, which necessitates ongoing training and oversight by a licensed nurse. In contrast, monitoring client symptoms, administering insulin injections (if trained appropriately), and providing basic personal care are tasks that can be delegated as they are typically more routine and the risks associated with them can be effectively managed.