The nurse aide MUST wear gloves when:

Wearing gloves when providing mouth care is essential for maintaining both the resident's and the healthcare provider's safety and hygiene. Mouth care involves direct contact with bodily fluids, such as saliva, and can present a risk for the transmission of infections. By using gloves, the nurse aide helps to prevent the spread of bacteria and protects themselves from potential exposure to infectious agents that might be present in the resident's mouth.

In this context, providing mouth care often includes tasks that require maintaining cleanliness and managing any potential cross-contamination, making the use of gloves critical. It ensures that proper infection control protocols are adhered to, thereby safeguarding the health of both the patient and the caregiver. This practice is a fundamental aspect of hygiene and professional standards in healthcare settings.