CHBT Dialysis Equipment Maintenance and Troubleshooting

Question 1

What is the primary purpose of a conductivity alarm on a hemodialysis machine?

Accepted Answer

To detect incorrect dialysate concentration

Answer

To measure blood flow rate

Answer

To monitor ultrafiltration volume

Answer

To alert for air in the blood tubing

Question 2

How often should hemodialysis machine proportioning systems be calibrated according to standard practice?

Accepted Answer

Per manufacturer schedule, typically monthly or after repair

Answer

Monthly

Answer

Weekly

Answer

Only when an alarm occurs

Question 3

Which component is responsible for generating the negative transmembrane pressure that drives ultrafiltration in a dialysis machine?

Accepted Answer

Ultrafiltration controller

Answer

Blood pump

Answer

Dialysate pump

Answer

Bicarbonate proportioning module

Question 4

A blood leak alarm activates during treatment. What is the correct first response by the biomed technician verifying the alarm?

Accepted Answer

Inspect the dialysate outflow for pink or red discoloration

Answer

Silence the alarm and continue treatment

Answer

Increase blood flow rate

Answer

Replace the dialysate proportioning pump

Question 5

What does a high venous pressure alarm most commonly indicate?

Accepted Answer

Clotted or kinked venous blood line

Answer

Low blood pump speed

Answer

Ruptured dialyzer membrane

Answer

Insufficient anticoagulation

Question 6

Which maintenance task should be performed after every patient treatment to protect the dialysis machine's internal fluid pathways?

Accepted Answer

Run a disinfection/rinse cycle per protocol

Answer

Replace the blood pump segment

Answer

Calibrate the conductivity sensor

Answer

Replace the venous pressure transducer protector