1. When addressing a trauma scene with potential chemical contamination, what is the first step in ensuring safety? A. Apply a disinfectant to all surfaces. B. Establish a safety perimeter and don PPE. C. Begin immediate cleanup to reduce contamination. D. Ventilate the area. Answer: B. The first step is to establish a safety perimeter and don personal protective equipment (PPE) to ensure the safety of the cleanup crew and prevent cross-contamination. 2. In the event of a crime scene cleanup, which factor is most critical in determining the appropriate cleaning agent? A. The cost of the cleaning agent. B. The surface type that needs cleaning. C. The preference of the cleaning crew. D. The type of biological material present. Answer: D. The type of biological material present is critical in determining the appropriate cleaning agent to effectively break down and remove biohazardous substances. 3. What is the recommended procedure for cleaning blood spills on porous materials? A. Saturate the area with water and blot dry. B. Use a strong bleach solution to disinfect the area. C. Remove as much of the spill as possible before applying a disinfectant. D. Cover the spill with paint to seal the area. Answer: C. The recommended procedure is to remove as much of the spill as possible before applying a disinfectant to ensure thorough decontamination of the area. 4. How should a cleanup technician handle sharps found at a trauma scene? A. Pick them up with gloved hands and dispose of them in regular trash. B. Use a mechanical tool to pick them up and place them in a punctureresistant container. C. Sweep them into a dustpan and dispose of them in biohazard bags.