CDN Vascular Access Management 2

Question 1

Which dressing change technique is used for the buttonhole cannulation method?

Accepted Answer

Removal of scab with sterile technique before needle insertion

Answer

Transparent occlusive dressing only

Answer

Betadine-soaked gauze left in place 24 hours

Answer

Alcohol swab applied immediately before needle insertion

Question 2

What is a primary advantage of the buttonhole cannulation technique over rope-ladder technique?

Accepted Answer

Reduced cannulation pain and fewer hematomas

Answer

Higher blood flow rates

Answer

Lower infection risk than rope-ladder

Answer

Faster fistula maturation

Question 3

A patient on hemodialysis has a Kt/V of 1.1 and a recirculation rate of 22% in their AV fistula. What is the most likely cause?

Accepted Answer

Access stenosis causing venous hypertension

Answer

High blood flow rate

Answer

Low dialysate flow rate

Answer

Patient non-compliance

Question 4

Which sign is the BEST indicator of AV graft thrombosis?

Accepted Answer

Absence of bruit and thrill

Answer

Elevated blood pressure

Answer

Increased access blood flow on monitoring

Answer

Prolonged bleeding after needle removal

Question 5

What should the dialysis nurse do first when a patient experiences venous needle dislodgement during treatment?

Accepted Answer

Immediately turn off the blood pump and apply firm pressure to the site

Answer

Apply pressure to the site and slow the blood pump

Answer

Clamp the arterial line and return blood through arterial needle

Answer

Increase the blood pump speed to prevent clotting

Question 6

Which intervention is recommended to prevent steal syndrome in a patient with an AV fistula?

Accepted Answer

Surgical banding or revision of the fistula

Answer

Increase blood pump speed

Answer

Apply warm compresses to the access arm

Answer

Administer vasodilators before dialysis