Final answer:
The final action a CNA should take when making a resident's bed is to ensure the call signal is within easy reach of the resident.
Step-by-step explanation:
When making a resident's bed, a Certified Nursing Assistant (CNA) should always ensure that the final action they take is to put the call signal within easy reach of the resident. This is vital for the safety and well-being of the resident, as it allows them to alert staff if they need assistance. Although handwashing is critically important, especially in the healthcare setting, it is not the final action taken while bed-making as it needs to occur after the CNA has completed all tasks and is about to leave the room.
Repositioning the bed to a low position is also important for safety, but it can be done just before or after the call signal is placed within reach, not necessarily as the final step. Making sure to smooth all wrinkles from the bed contributes to the comfort of the resident but would precede the placement of the call signal. Regardless of the task, CNAs should always remember to wash their hands following the CDC's recommendations as a general practice after providing care.