VABC Catheter Types 5

Question 1

What is the recommended dwell time limit for a peripheral intravenous catheter (PIV) in an adult patient without signs of complications?

Accepted Answer

72-96 hours or clinically indicated replacement

Answer

Current INS and CDC guidelines support replacing PIVs at 72-96 hours in adults or based on clinical indication rather than routine scheduled replacement.

Question 2

Which catheter type is specifically designed to monitor central venous oxygen saturation (ScvO2) continuously?

Accepted Answer

Oximetry CVC with fiberoptic technology

Answer

Oximetry CVCs incorporate fiberoptic technology to continuously measure ScvO2, providing real-time data on oxygen delivery and consumption balance.

Question 3

A dialysis catheter placed in the femoral vein carries a higher infection risk than a jugular or subclavian site primarily because of which factor?

Accepted Answer

Proximity to the groin with higher bacterial colonization and reduced patient mobility

Answer

The femoral site has higher skin bacterial colonization, limited ability to apply dressings effectively, and reduced patient mobility, all contributing to higher CLABSI risk.

Question 4

Which feature distinguishes a pressure-activated safety valve (PASV) catheter from a standard open-ended catheter?

Accepted Answer

Its valve opens only above a threshold pressure differential, preventing passive blood reflux

Answer

PASV catheters have a valve that opens only when infusion or aspiration pressure exceeds a set threshold, passively preventing blood reflux at rest without a clamp.

Question 5

In pediatric patients, which catheter provides central venous access via an extremity vein when neck or chest placement poses unacceptable risks?

Accepted Answer

PICC line

Answer

PICC lines are frequently used in pediatric patients to achieve central venous access through peripheral extremity veins, avoiding the higher-risk neck or chest insertion sites.

(VABC) Vascular Access Board Certification Practice Test

(VABC) Vascular Access Board Certification Practice Test

VABC Catheter Types 5