✅ MCQs: Dialysis Catheters
1. Which of the following is a temporary dialysis access device?
A. Arteriovenous fistula
B. Tunneled cuffed catheter
C. Non-tunneled catheter
D. Graft
➡️ Answer: C. Non-tunneled catheter
2. Where is a tunneled dialysis catheter usually inserted?
A. Radial artery
B. Femoral artery
C. Internal jugular vein
D. Subclavian artery
➡️ Answer: C. Internal jugular vein
3. The major risk associated with long-term use of dialysis catheters is:
A. Aneurysm
B. Infection
C. Hypertension
D. Hyperkalemia
➡️ Answer: B. Infection
4. Which of the following best describes a tunneled dialysis catheter?
A. Used for emergency short-term access
B. Placed in the operating room under general anesthesia only
C. Has a cuff that promotes tissue ingrowth
D. Cannot be used for hemodialysis
➡️ Answer: C. Has a cuff that promotes tissue ingrowth
5. Which of the following veins is most preferred for catheter insertion to reduce risk of central vein stenosis?
A. Left subclavian vein
B. Right internal jugular vein
C. Left femoral vein
D. External jugular vein
➡️ Answer: B. Right internal jugular vein
6. What is the purpose of locking a dialysis catheter with heparin or citrate after use?
A. To clean the catheter
B. To prevent clotting inside the lumen
C. To numb the catheter site
D. To increase blood flow
➡️ Answer: B. To prevent clotting inside the lumen
7. Which is a key sign of catheter-related bloodstream infection (CRBSI)?
A. Hypertension
B. Fever with no other source of infection
C. Increased appetite
D. Muscle twitching
➡️ Answer: B. Fever with no other source of infection
8. What is the usual blood flow rate achievable through a well-functioning tunneled catheter?
A. 100–150 mL/min
B. 200–250 mL/min
C. 300–500 mL/min
D. >600 mL/min
➡️ Answer: B. 200–250 mL/min
9. A dialysis catheter should be flushed with saline before use to:
A. Prevent anemia
B. Reduce infection
C. Confirm patency
D. Lower potassium
➡️ Answer: C. Confirm patency
10. When using a dialysis catheter, blood should be drawn from:
A. The arterial port only
B. The venous port only
C. Either port
D. The designated arterial and venous ports appropriately
➡️ Answer: D. The designated arterial and venous ports appropriately