Water CCHT Test | Questions and Correct Solutions 2024/2025

Water CCHT Test | Questions and Correct Solutions 2024 What are the two main reason for treating the water used for hemodialysis? - Answer -preventing harm to the patient and preventing damage to the RO system List the contaminants in the water that are living creatures? - Answer -Bacteria and viruses What are the usual way that water becomes contaminated? - Answer -The process of acid rain, surface water from lakes, ponds, rivers and reservoris. Define endotoxin - Answer -A part of the bacterial cell walls that can contaminate water used for dialysis What is the function of the water softener in a water treatment system? What principle is responsible for this? - Answer -To remove calcium and magnesium. the water softener works by ion exchanges According to AAMI standard, how often should bacteriological testing of water used for dialysis be done? - Answer -monthly Why is water considered safe for drinking not necessarily safe for hemodialysis? - Answer -Patient are exposed to very large volumes of water during dialysis. What contaminants are removed by the carbon tants? - Answer -Chlorine, chloramines, pesticide, industrial solvents, and some trace organic substances.- The carbon tanks work on the principle of adsorption( attracts and holds low molecular weight particles from the water, much like a magnet attracts and holds iron filings)