Certified Hemodialysis Technologist/Technician Exam Dialysis Water Treatment and Quality 1

Question 1

What is the maximum allowable level of chloramine in dialysis water according to AAMI standards?

Accepted Answer

0.1 mg/L

Answer

0.5 mg/L

Answer

1.0 mg/L

Answer

2.0 mg/L

Question 2

Which water treatment component is primarily responsible for removing chlorine and chloramines from dialysis water?

Accepted Answer

Activated carbon tank

Answer

Reverse osmosis membrane

Answer

Water softener

Answer

Deionizer

Question 3

How often should total chlorine be tested in the water treatment system during a dialysis treatment day?

Accepted Answer

At the beginning of each treatment day

Answer

Once per week

Answer

Once per month

Answer

Every 4 hours

Question 4

What is the purpose of the softener in a dialysis water treatment system?

Accepted Answer

Removes calcium and magnesium ions

Answer

Removes bacteria

Answer

Removes chlorine

Answer

Removes endotoxins

Question 5

Which of the following contaminants in dialysis water can cause aluminum toxicity in patients?

Accepted Answer

Aluminum

Answer

Nitrates

Answer

Fluoride

Answer

Copper

Question 6

The reverse osmosis (RO) unit in water treatment works primarily by:

Accepted Answer

Forcing water through a semi-permeable membrane under pressure

Answer

Ion exchange

Answer

Adsorption

Answer

UV irradiation