When should you apply a mask, eyewear, or gown according to Standard Precautions?

Applying a mask, eyewear, or gown is primarily recommended when the risk of exposure to body fluids is present, which aligns with good infection control practices. Standard Precautions are designed to protect both the practitioner and the client from potential risks, particularly in circumstances where splashes or sprays of bodily fluids could occur, such as during certain treatments involving skin penetration or high-risk procedures.

In this context, using protective gear helps minimize the chance of transmission of infections and maintains a safe working environment. It's essential to recognize that while protective measures could be necessary in broader scenarios, the specific mention of splashing of body fluids highlights the most critical times for using such gear. The other options suggest broader or less specific situations where protection might not be as critical, which would not align directly with the focused intent of Standard Precautions.