CHBT Dialysis Equipment Maintenance and Troubleshooting 2

Question 1

What is the function of the transducer protector on a hemodialysis machine?

Accepted Answer

Prevents blood contamination of the pressure monitoring port

Answer

Measures arterial blood pressure

Answer

Filters dialysate before it enters the dialyzer

Answer

Controls the ultrafiltration rate

Question 2

A dialysis machine displays a low arterial pressure alarm. Which condition is LEAST likely to cause this?

Accepted Answer

High dialysate conductivity

Answer

Collapsed access site

Answer

Blood pump running too fast for access flow

Answer

Kinked arterial blood line

Question 3

How is the heparin pump on a hemodialysis machine typically primed before treatment?

Accepted Answer

Flushed with saline until heparin appears at the needle tip

Answer

Filled with dialysate

Answer

Run at maximum rate for 2 minutes

Answer

Pre-filled by the manufacturer

Question 4

Which parameter does the air detector/foam detector on a dialysis machine monitor?

Accepted Answer

Venous blood line for air or foam before blood returns to the patient

Answer

Dialysate for air bubbles

Answer

Blood pump occlusion

Answer

Dialyzer membrane integrity

Question 5

What is the recommended storage condition for unused dialyzer cartridges?

Accepted Answer

Room temperature, away from direct sunlight, within manufacturer expiration date

Answer

Refrigerated at 2–8°C

Answer

Submerged in sterile saline

Answer

Frozen until use

Question 6

If a dialysis machine's temperature sensor fails during treatment, what is the primary patient risk?

Accepted Answer

Hemolysis from overheated dialysate

Answer

Hypoglycemia

Answer

Air embolism

Answer

Metabolic alkalosis