1. Which element in the circular chain of infection can be eliminated by preserving skin integrity? A. Host B. Reservoir C. Mode of transmission D. Portal of entry 2. Which of the following will probably result in a break in sterile technique for respiratory isolation? A. Opening the patient’s window to the outside environment B. Turning on the patient’s room ventilator C. Opening the door of the patient’s room leading into the hospital corridor D. Failing to wear gloves when administering a bed bath 3. Which of the following patients is at greater risk for contracting an infection? A. A patient with leukopenia B. A patient receiving broad-spectrum antibiotics C. A postoperative patient who has undergone orthopedic surgery D. A newly diagnosed diabetic patient 4. Effective hand washing requires the use of: A. Soap or detergent to promote emulsification B. Hot water to destroy bacteria C. A disinfectant to increase surface tension D. All of the above 5. After routine patient contact, hand washing should last at least: