Final answer:
The statement by one of the staff nurses that indicates an understanding of isolation precautions is 'Gloves should be changed between caring for different clients in isolation.' Therefore, the correct option is C.
Step-by-step explanation:
Isolation precautions are crucial in preventing the spread of infections in healthcare settings. The correct statement, "Gloves should be changed between caring for different clients in isolation," reflects an understanding of the need for infection control. Changing gloves between patients is essential to prevent the transmission of microorganisms from one patient to another.
This practice is particularly vital when moving from a patient on contact precautions to another patient or when providing care that involves contact with potentially contaminated surfaces. It demonstrates adherence to infection control protocols and contributes to maintaining a safe and hygienic environment for both healthcare providers and patients.
The other options are incorrect as wearing a mask during contact precautions (Option A) and practicing hand hygiene only after direct contact with body fluids (Option B) do not align with comprehensive infection control practices. Additionally, not wearing a gown during airborne precautions (Option D) poses a significant risk of exposure and is not in line with proper isolation precautions.
Therefore, the correct option is C.