CHT Domain 3: Water Treatment Welcome to your CHT Domain 3: Water Treatment 1. CHT: Water Treatment What is the primary role of a carbon tank in hemodialysis water treatment systems? To adjust the pH of the water To remove chlorine and chloramines To soften the water To remove bicarbonate None 2. CHT: Water Treatment What is the main reason for monitoring total dissolved solids (TDS) in the water used for hemodialysis? To check the efficiency of water softeners To prevent scale buildup in the machinery To ensure the removal of organic compounds To verify the performance of reverse osmosis membranes None 3. CHT: Water Treatment Which component is critical for preventing bacterial contamination in hemodialysis water treatment systems? Carbon filters UV light Water softeners pH sensors None 4. CHT: Water Treatment In the context of dialysis, why is it important to control the level of chloramines in water? They can degrade membranes in the dialysis machines. They increase the risk of hemolysis in patients. They contribute to the hardness of the water. They are used as a nutritional supplement in dialysate. None 5. CHT: Water Treatment What is the purpose of using a deionization system in conjunction with reverse osmosis in dialysis water treatment? To add essential ions back into the water To further reduce the concentration of ionic contaminants To increase the pH of the treated water To regenerate used carbon filters None 6. CHT: Water Treatment Which water treatment process is specifically effective at removing dissolved organic compounds and endotoxins? Filtration through a micron filter Reverse osmosis Ultraviolet irradiation Aeration None 7. CHT: Water Treatment How does the presence of high levels of bicarbonates in dialysis water affect patients? It leads to increased blood pressure. It causes metabolic acidosis. It reduces the effectiveness of dialysis. It causes metabolic alkalosis. None 8. CHT: Water Treatment What is the significance of using dual-stage carbon tanks in dialysis water treatment systems? They increase the pH stability of the water. They enhance the removal of heavy metals. They provide redundancy in removing chlorine and chloramines. They are used to soften the water before it enters the reverse osmosis system. None 9. CHT: Water Treatment Why is periodic replacement of filters and membranes necessary in the water treatment systems used for hemodialysis? To maintain the aesthetic quality of the water To prevent chemical buildup and ensure effective contaminant removal To increase the water flow rate through the system To adjust the water temperature None 10. CHT: Water Treatment What role does the water softener play in the pretreatment process of hemodialysis water treatment systems? It removes gases from the water. It eliminates microorganisms. It reduces the concentration of divalent cations. It enhances the flavor of the water. None 11. CHT: Water Treatment For what purpose is a 'blend valve' used in the context of dialysis water treatment systems? To mix treated and untreated water to achieve desired conductivity levels To control the flow rate of water through the carbon tanks To isolate the system for maintenance without shutting down To increase the temperature of the water for better contaminant removal None 12. CHT: Water Treatment What is the potential hazard of a failed backflow preventer in a dialysis water treatment system? Increased water hardness Risk of contaminating the public water supply Decreased efficiency of UV lamps Overheating of the water system None 13. CHT: Water Treatment What is the impact of high sulfate levels in the water used for hemodialysis? It can lead to gastrointestinal disturbances in patients. It enhances the transfer of toxins across the dialysis membrane. It can cause an increase in water pH. It stabilizes the membrane performance in dialysis machines. None 14. CHT: Water Treatment Why is it important to monitor the pressure gauges in a hemodialysis water treatment system regularly? To ensure appropriate flow rates and prevent membrane damage To check the levels of dissolved gases in the water To monitor the temperature stability To detect the presence of organic contaminants None 15. CHT: Water Treatment What is the primary function of a loop in a dialysis water distribution system? To allow for simultaneous distribution to multiple dialysis machines To maintain a constant temperature in the distribution system To prevent stagnation and microbial growth To filter out residual particulate matter None 16. CHT: Water Treatment How does a 'fail-safe' design feature in dialysis water treatment systems benefit patient safety? By ensuring uninterrupted power supply By automatically switching to a backup water source By preventing water treatment parameters from exceeding safe limits By regulating the dose of chemical disinfectants None 17. CHT: Water Treatment What role does an air gap play in a dialysis water treatment system? It helps in regulating water temperature. It prevents the backflow of contaminated water. It increases the oxygen content of the water. It filters large particulate contaminants. None 18. CHT: Water Treatment In a hemodialysis setting, why is it necessary to regularly test water for bacterial endotoxins? To ensure the effectiveness of UV disinfection To comply with international dialysis safety standards To monitor for breakthroughs in filter performance To adjust the chemical dosing in the water treatment system None 19. CHT: Water Treatment How does the presence of excessive fluoride in dialysis water affect patients? It leads to fluorosis in bone structures. It increases the risk of hypertension. It reduces the effectiveness of dialysis treatment. It enhances mineral absorption in patients. None 20. CHT: Water Treatment What is the primary benefit of using automatic data logging systems in monitoring water quality in dialysis centers? To provide real-time patient feedback To enable remote troubleshooting of equipment To ensure compliance with established water quality standards To increase the speed of water treatment processes None 1 out of 20 Time is Up! Time's up
