Which of the following is an appropriate way for an NA to refer to a resident's weakened side when assisting with dressing?

Referring to a resident's weakened side as the "involved side" is appropriate because it uses professional and neutral language that respects the dignity of the resident. The term "involved side" indicates the side that may require assistance without implying any negative connotations or focusing on the disability. This terminology is commonly accepted in healthcare settings, fostering a supportive environment during assistance with activities like dressing. Using respectful language is crucial in ensuring that residents feel valued and understood. The other terms listed may carry degrading or negative implications, making them unsuitable for effective communication in a healthcare context.