Certified Hemodialysis Technologist/Technician Exam Water Treatment and Quality 2

Question 1

What is the AAMI maximum allowable bacterial count in dialysate?

Accepted Answer

200 CFU/mL

Answer

100 CFU/mL

Answer

500 CFU/mL

Answer

1000 CFU/mL

Question 2

Activated carbon tanks in a water treatment system primarily remove which contaminants?

Accepted Answer

Chlorine and chloramines

Answer

Heavy metals

Answer

Hardness ions

Answer

Nitrates

Question 3

A patient develops sudden hemolysis during dialysis. Which water contaminant should be suspected first?

Accepted Answer

Chloramine

Answer

Fluoride

Answer

Nitrate

Answer

Aluminum

Question 4

How frequently should the deionizer resin tanks be tested for resistivity in a dialysis water system?

Accepted Answer

Each treatment shift

Answer

Daily

Answer

Weekly

Answer

Monthly

Question 5

What minimum water-to-concentrate ratio is used by most proportioning hemodialysis machines?

Accepted Answer

34:1

Answer

30:1

Answer

36:1

Answer

40:1

Question 6

Which method is used to disinfect dialysis water distribution loops?

Accepted Answer

Peracetic acid or bleach recirculation

Answer

UV radiation only

Answer

Ozone exposure only

Answer

Heat pasteurization only