Which of the following items is typically considered a single-use item?

Cotton balls are typically regarded as a single-use item because they are designed for immediate use with a specific client and should not be reused to ensure hygiene and prevent cross-contamination. In esthetics and beauty practices, using single-use items, like cotton balls, is crucial for maintaining a sterile environment and ensuring client safety. Once used, cotton balls are disposed of to minimize any risk of transferring bacteria or other harmful substances to other clients.

In contrast, scissors, plastic combs, and metal tweezers can be cleaned and sanitized for reuse, which is why these items are not classified as single-use. Their nature allows for proper cleaning methods between clients, adhering to health and safety regulations set forth in esthetics practices.