Certified Hemodialysis Technologist/Technician Exam Water Treatment and Quality

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 test is used to detect chloramine in dialysis water?

Accepted Answer

OT test

Answer

DPD test

Answer

Silver nitrate test

Answer

Nitrazine test

Question 3

How often should product water be tested for bacteria in a dialysis facility?

Accepted Answer

Monthly

Answer

Daily

Answer

Weekly

Answer

Quarterly

Question 4

What is the maximum allowable endotoxin level in standard dialysis water?

Accepted Answer

1.0 EU/mL

Answer

0.25 EU/mL

Answer

2.0 EU/mL

Answer

5.0 EU/mL

Question 5

Which component of a water treatment system is responsible for removing bacteria and endotoxins through size exclusion?

Accepted Answer

Reverse osmosis membrane

Answer

Activated carbon

Answer

Water softener

Answer

Sediment filter

Question 6

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

Accepted Answer

Remove calcium and magnesium ions

Answer

Remove chlorine

Answer

Remove bacteria

Answer

Adjust pH