What precautions did Bonnie take in the ER to prevent contamination during a trauma situation?

The choice that states Bonnie used gloves and a mask is the correct approach to preventing contamination during a trauma situation in the emergency room (ER). This practice is essential in healthcare settings, particularly in situations where exposure to blood and other bodily fluids is likely.

Wearing gloves provides a barrier between the healthcare worker's skin and any pathogens that may be present in the patient's bodily fluids. This is crucial for maintaining infection control, especially in a trauma setting where the risk of exposure to infectious materials is heightened. Additionally, wearing a mask protects the healthcare worker from inhaling potentially infectious droplets and also helps reduce the risk of transmitting infections to the patient.

This combination of PPE (Personal Protective Equipment) is a standard protocol in emergency medicine, ensuring the safety of both the healthcare provider and the patient. Other options, such as wearing casual clothing, only wearing a mask, or using no precautions, each lack essential protective measures that are necessary to prevent cross-contamination and protect against infectious diseases in a high-risk environment like the ER.