A charge nurse is teaching a group of health care workers about hand hygiene to prevent infection. Which of the following information should the charge nurse include in the teaching? Keep artificial nails trimmed. Use alcohol-based hand rubs before administering eye drops for a client. Wash hands with alcohol-based hand rubs when caring for a client who has Clostridium difficile. Use chlorhexidine to wash hands if the client is immunosuppressed.