Which behavior indicates correct application of universal precautions by nonprofessional staff?

Correct Answer: C

Rationale: Masks and protective eye wear are indicated anytime there is great potential for splashing of body fluids that may be contaminated with blood. Suctioning of a tracheostomy almost always stimulates coughing, which is likely to generate droplets that may splash the health care worker.

Correct Answer: C

Rationale: Purulent drainage is a definitive sign of infection, indicating the presence of pathogenic organisms.

Correct Answer: A

Rationale: Checking placement regularly ensures the nasogastric tube is correctly positioned, preventing complications such as aspiration.

Correct Answer: A

Rationale: Administering oxygen improves oxygenation, supporting vital organ function during a pulmonary embolism.

Correct Answer: D

Rationale: Showering with antiseptic soap before surgery (D) is the most effective method to reduce skin microorganisms. Shaving the day before (A) risks infection, topical antiseptic alone (B) is insufficient, and a tub bath (C) is less effective than showering.