1) Which of the following is a virus? a) Escherichia coli (E. coli) b) Histoplasmosis c) Pinworms d) Varicella 2) Which of the following can be further classified as protozoa, helminths, and ectoparasite? a) Parasites b) Bacteria c) Viruses d) Fungi 3) Which of the following is a direct mode of transmission? a) Contact with an infected person b) Contact with a contaminated examination table c) Contact with a tick d) Contact with a pen 4) A health care worker is not feeling well and has a fever. In which of the following scenarios can the health care worker resume caring for patients? a) After being fever-free for 48 hr with the help of fever-reducing medications b) After being fever-free for 24 hr with the help of fever-reducing medications c) After being fever-free for 48 hr without the help of fever-reducing medications d) After being fever-free for 24 hr without the help of fever-reducing medications 5) According to the CDC, which of the following is the first step a medical assistant should take after exposure to blood? a) Report it to their supervisor. b) Receive a medical evaluation. c) Receive health counseling. d) Wash the area with soap and water. 6) A medical assistant is performing aseptic handwashing. How long should the assistant rub their hands vigorously with soap? a) 5 to 10 seconds b) 10 to 15 seconds c) 15 to 20 seconds d) 2 to 3 min 7) How often are health care facilities required to train their staff on guidelines for exposure to bloodborne pathogens? a) Biannually b) Annually c) Every 2 years d) The health care facility can determine when they want to train their staff 8) What is the minimum temperature that must be reached to ensure the sterility of autoclaved items? a) 93.3° C (200° F) b) 107.2° C (225° F) c) 135° C (275° F) d) 121.1° C (250° F) 9) According to CDC guidelines, when can sterilized packages be used? a) If the package is intact and has no tears but does show a watermark b) If the package has a small tear patched with tape c) If the package was stored near a sink on an open shelf d) If the package has been stored in a cool, dry area and does not show watermarks 10) When using chemical sterilization, how long do instruments need to be submerged to be considered sterilized? a) 6 hr b) 10 hr c) 8 hr d) 24 hr 11) How long should unwrapped items be sterilized in an autoclave? a) 10 min b) 15 min c) 20 min d) 40 min 12) Which of the following is the goal of surgical asepsis? a) To reduce the number of micro-organisms b) To eliminate pathogenic micro-organisms c) To try to reduce the risk of contamination d) To prohibit the growth of micro-organisms 13) In which of the following scenarios should a medical assistant use medical aseptic techniques? a) Washing hands prior to and after each patient encounter b) Assisting in the removal of a cyst c) Assisting with placing sutures on a cut leg d) Cleaning a deep wound on the forearm 14) Which of the following items should a medical assistant dispose of in a biohazard waste bag? a) Gauze that fell on the ground b) A used needle c) Gauze contaminated with blood d) A used mask 15) Gloves should be worn during which of the following medical office tasks? a) Cleaning the front office table b) Performing a blood pressure reading for a patient c) Handling anything contaminated with blood d) Handling unused suture scissors 16) How often should the exposure control plan be updated if there are no changes? a) Monthly b) Quarterly c) Annually d) Every 5 years 17) In a health care setting, which of the following is the minimum amount of alcohol content that can be used in an alcohol￾based sanitizer? a) 40% b) 55% c) 60% d) 90% 18) OSHA regulations require employers to make which of the following vaccines available at no cost to health care workers? a) Hepatitis A b) Hepatitis B c) Varicella d) Measles, mumps, and rubella (MMR) 19) Which of the following is a common symptom of contracting an infectious disease? a) Numbness and tingling b) Headache c) Blurry vision d) Difficulty breathing 20) Which of the following precautions should a medical assistant consider when a person is coughing or sneezing? a) Droplet precautions b) Airborne precautions c) Contact precautions d) Transmission-based precautions

NHA: Infection Control and Safety

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