Water CCHT Test Questions with 100% Correct Answers | Verified | Latest Update 2023 / 2024, Exams of Nursing

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Water CCHT Test Questions with 100% Correct

Answers | Verified | Latest Update

Water CCHT Test Questions with 100% Correct

Answers | Verified | Latest Update 2023 / 2024.Assured

A+

1. What are the two main reason for treating the water used for hemodialysis? -

✔️✔️✔️ preventing harm to the patient and preventing damage to the RO system

2. List the contaminants in the water that are living creatures? - ✔️✔️✔️ Bacteria and viruses

3. What are the usual way that water becomes contaminated? - ✔️✔️✔️ The process of acid

rain, surface water from lakes, ponds, rivers and reservoris.

4. Define endotoxin - ✔️✔️✔️ A part of the bacterial cell walls that can contaminate water

used for dialysis

5. What is the function of the water softener in a water treatment system? What principle is

responsible for this? - ✔️✔️✔️ To remove calcium and magnesium. the water softener

works by ion exchanges

6. According to AAMI standard, how often should bacteriological testing of water used for

dialysis be done? - ✔️✔️✔️ monthly

7. Why is water considered safe for drinking not necessarily safe for hemodialysis? -

✔️✔️✔️ Patient are exposed to very large volumes of water during dialysis.

Water CCHT Test Questions with 100% Correct

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8. What contaminants are removed by the carbon tants? - ✔️✔️✔️ 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)

9. Exposure to chloramines during hemodialysis may cause? - ✔️✔️✔️ Hemolysis

10. List some examples of the water contaminants? - ✔️✔️✔️ Minerals, sodium, chlorine,

nitrate salts, pesticides, impurities from industry, fertilizers, herbicides, fluoride, chloramines( chlorine and ammonia), trace metals and, Microorganisms.

11. What sign/symptom most commonly occur from bacteria/endotoxin exposure? -

✔️✔️✔️ Fever and chills

12. Describe the Reverse Osmosis system - ✔️✔️✔️ a membrane separation process for

removing solutes from a solution.

13. Feed water is pumped under pressure through the semipermeable membrane which removes most contaminants from the water. the RO membrane can reject 95 to 99% of many substances including bacteria viruses, endotoxin, salts, metals and chemicals

14. What are water quality checks done on the water treatment system? - ✔️✔️✔️ At the start

of the day, before every shift of patient or every 4 hours ( if you do not have set shift)

Water CCHT Test Questions with 100% Correct

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15. According to AAMI standards bacteria in dialysis water must not exceed what level? -

✔️✔️✔️ 200 CFU/ml

16. What is the action level for bacteria? - ✔️✔️✔️ 50 CFU/ml

17. According to AAMI standards endotoxin on dialysis water must not exceed what level? -

✔️✔️✔️ 2 EU/ml

18. What is the action level for endotoxin? - ✔️✔️✔️ 1 EU/ml

19. How often should the RO operating parameters be checked? - ✔️✔️✔️ daily

20. What is the most common way that water treatment systems are disinfected? -

✔️✔️✔️ Chemical disinfection

21. What substance is added to municipal drinking water supplies in some localities to make

the water clearer? - ✔️✔️✔️ Alum

22. WHAT IS THE DEVICE THAT ALLOWED MIXED OF COLD OF HOT WATER AND

COLD WATER TO A STANDARD TEMPERATURE OF 77-82 DEGREES WHICH

HELPS IMPROVE THE WATER QUALITY? - ✔️✔️✔️ Blending valve

Water CCHT Test Questions with 100% Correct

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23. What is the name of the device that prevents treated water from entering the feed water?
    • ✔️✔️✔️ Backflow prevention device

24. When should the water hardness test be done? - ✔️✔️✔️ At the end of the day

25. What material is in the carbon tants that attracts chlorine and chloramines? -

✔️✔️✔️ Granular activated charcoal

26. How many carbon tanks in a series must a water treatment system have? - ✔️✔️✔️ 2

27. How much EBCT( empty bed contact time) must the carton tanks have? - ✔️✔️✔️ 10

minutes

28. What should the total chlorine level be after the first carbon tank? - ✔️✔️✔️ less than

0.1ppm

29. The reverse osmosis must be running for how long before completion of the test for total

chlorine level? - ✔️✔️✔️ 15 minutes

30. What is the backup system for the RO? - ✔️✔️✔️ Deionization tanks

31. there are usually 2 tanks in a series
32. must have resistivity meter that can be heard and seen in the patient care area

Water CCHT Test Questions with 100% Correct

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33. What is the purpose of an Ultraviolet light in the water treatment system? -

✔️✔️✔️ Destruction of microbes

34. what type of filter must follow in line after the Ultraviolet light? - ✔️✔️✔️ Submicron and

Ultrafilters