Dialysis Equipment and Troubleshooting Flashcards
6 cards from real CHT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Dialysis Equipment and Troubleshooting flashcards as text
Which conductivity value would most likely trigger the dialysate bypass alarm?
Answer: 10.0 mS/cm
A conductivity of 10.0 mS/cm is significantly below the normal range of 13–17 mS/cm and would trigger bypass, indicating improper mixing.
What is the recommended dialysate temperature range for standard hemodialysis?
Answer: 36–38°C
Standard dialysate temperature is maintained at 36–38°C to prevent hypothermia or protein denaturation in the extracorporeal circuit.
Which action should be performed before reprocessing a dialyzer for reuse?
Answer: Test the fiber bundle volume
Fiber bundle volume (FBV) testing before and after reprocessing determines if the dialyzer retains adequate clearance capacity.
During priming of the extracorporeal circuit, approximately how much saline is typically used?
Answer: 300–500 mL
A standard circuit prime uses approximately 300–500 mL of saline to displace air and prepare the blood lines and dialyzer.
What is the most common cause of clotting in the extracorporeal circuit during hemodialysis?
Answer: Insufficient anticoagulation
Inadequate heparin or anticoagulation is the most common reason blood clots form in the tubing, dialyzer, or drip chambers.
When setting up a hemodialysis machine, what does the technician verify by performing a 'pressure hold test'?
Answer: Integrity of the blood circuit for leaks
A pressure hold test verifies that the blood circuit is intact and free of leaks before connecting the patient.