CHT Domain 4: Infection Control Welcome to your CHT Domain 4: Infection Control 1. CHT: Infection Control Which of the following is NOT a recommended practice for preventing cross-contamination in a hemodialysis setting? Using dedicated machines for patients with infectious diseases Disinfecting dialysis machines with an EPA-registered disinfectant after each use Allowing the internal fluid pathways of the dialysis machine to air dry Using gloves when handling vascular access sites None 2. CHT: Infection Control In hemodialysis, what is the minimum recommended concentration of chlorine solution for disinfecting surfaces potentially contaminated with hepatitis B virus? 500 ppm 1000 ppm 5000 ppm 100 ppm None 3. CHT: Infection Control What is the recommended action if a dialysis patient is found to have an infection caused by a multidrug-resistant organism? Isolate the patient immediately Treat with the strongest available antibiotic without testing Discontinue dialysis until infection is resolved Use the same dialysis machine for other patients None 4. CHT: Infection Control When should gloves be changed in a hemodialysis unit? After every patient interaction Only if the gloves are visibly soiled After every four hours of continuous use Only at the end of the shift None 5. CHT: Infection Control Which of the following is NOT a standard practice for the management of sharps in a hemodialysis setting? Immediate disposal in a puncture-resistant container Recapping used needles Keeping the sharps container close to the point of use Using devices with safety features to prevent needlestick injuries None 6. CHT: Infection Control What is the primary purpose of using bicarbonate cartridges in hemodialysis machines? To filter out toxins from the blood To prevent bacterial growth in the dialysate To enhance the diffusion of substances across the dialyzer membrane To correct the pH of the dialysate None 7. CHT: Infection Control How frequently should the venous pressure alarm limits be tested on a hemodialysis machine? Before each patient's treatment Weekly Monthly Annually None 8. CHT: Infection Control Which of the following statements is true regarding the disposal of dialysis waste? All dialysis waste is considered infectious Only dialyzer cartridges should be treated as infectious waste Waste from hepatitis C positive patients need not be segregated Bloodlines and filters should be disposed of as general waste None 9. CHT: Infection Control What is the best practice for handling a blood spill in a hemodialysis unit? Covering the spill with gauze to absorb the blood Washing the area immediately with water Cleaning the area with a detergent followed by a disinfectant Ignoring small spills as they are not significant None 10. CHT: Infection Control What is the protocol for reprocessing a high-flux dialyzer? It should be discarded after a single use It can be reused up to 10 times with appropriate reprocessing It should be sterilized only with heat It can be reused indefinitely with chemical disinfection None 11. CHT: Infection Control What is the required action if a dialysis patient develops a fever during treatment? Continue the session as planned Terminate the session immediately Monitor the patient and reduce the blood flow rate Assess for potential sources of infection and consult with a physician None 12. CHT: Infection Control For which of the following pathogens must dialysis staff receive vaccination as a preventive measure? Tuberculosis Hepatitis B HIV Hepatitis C None 13. CHT: Infection Control What is the role of ultraviolet (UV) light in a hemodialysis water treatment system? It increases the oxygen content of the water It is used to soften the water It disinfects the water by killing bacteria and viruses It adjusts the pH level of the water None 14. CHT: Infection Control Which is NOT a standard precaution in a hemodialysis unit? Use of personal protective equipment Routine handwashing before and after patient contact Use of mask for all patient interactions Proper disposal of sharps None 15. CHT: Infection Control What is the correct procedure for the use of heparin in a dialysis setting to prevent infection? The heparin bottle should be shared between patients to conserve supplies Heparin should be drawn up in a syringe and used within one hour A new heparin vial should be used for each patient Heparin does not influence infection control practices None 16. CHT: Infection Control What is the recommended frequency for changing the dialysis machine's external filter? After every session Daily Weekly Monthly None 17. CHT: Infection Control Which procedure is critical to prevent the transmission of infectious agents through the water supply in a dialysis unit? Regular monitoring of water hardness Routine chlorination of the water supply Monthly testing for endotoxins Daily pH testing None 18. CHT: Infection Control In the context of infection control, what is the significance of 'decolonization' for patients with MRSA? It involves the complete elimination of the MRSA bacterium from the environment It refers to the use of specific antibiotics to reduce the bacterial load in the patient It means isolating the patient to prevent the spread of MRSA to others It includes treating all patients with antibiotics as a preventive measure None 19. CHT: Infection Control What is the purpose of the anaphylatoxin filter in a dialysis machine? It removes air bubbles from the dialysis fluid It filters out larger molecules that cannot pass through the dialyzer membrane It reduces the levels of cytokines released during dialysis It is used to prevent allergic reactions by removing immune system mediators None 20. CHT: Infection Control What is the most appropriate action to take when a patient is suspected of having tuberculosis in a hemodialysis unit? Continue treatment in a shared space while wearing masks Isolate the patient and use airborne precautions until tuberculosis is ruled out Provide treatment without any additional precautions Only use surgical masks for all patients and staff None 1 out of 20 Time is Up! Time's up
