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27. Nail length should be kept at a. 1/4 inch b . 1/2 inch C . Fingertip length d. None of the above 28. A needlestick injury could transmit disease. This type of disease transmission is called a. Enteral b . Parenteral C . Vector-borne d . Percutaneous 29. It is that allows the body to resist disease and prevent foreign bodies from causing infer a. susceptibility b . immunity C . good health d. heredity 30. The main goal of an effective infection control plan in a dental office is to a. Keep employees healthy b. Assure patients that they office is clean C . Identify patients with disease d. Keep patients healthy e . Reduce numbers of microbes 31. A preprocedural mouth rinse can be done with the following solution a. Clondexidine b . Chlorhexidine C . Chlarhexidinediglaconaat d . Phenol based disinfectant e . None of the above 32. Which of the following is not true regarding the use of overgloves They are acceptable alone as a hand barrier for intraoral procedures a. b. They are discarded after a single use They can be worn over contaminated treatment gloves C . d. They can used to touch a noncontaminated object 33. Mist-like aerosols are a. visible to the naked eye b. created by the prophy cup during dental procedures not capable of transmitting respiratory infections C . d. finer sized particles than sprays and spatter 34. How long should you rub your hands when washing with soap and water? a. 15 seconds b. 30 seconds C. 45 seconds d. 60 seconds e. 2 minutes Which of the following PPEs should be placed on last?

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