VABC Vascular Access Devices & Technologies 4

Question 1

Which ultrasound probe orientation is used for longitudinal (in-plane) visualization during peripheral IV catheter insertion?

Accepted Answer

Probe rotated 90 degrees so the vessel appears as a long tubular structure

Answer

Longitudinal (long-axis, in-plane) technique rotates the probe so the vessel is visualized along its length, allowing real-time tracking of the needle within the vessel.

Question 2

ECG-guided PICC tip confirmation works by detecting which cardiac electrical signal at the catheter tip?

Accepted Answer

Maximally tall P wave when the tip approaches the sinoatrial node near the SVC-RA junction

Answer

As the guidewire or catheter tip approaches the SVC-right atrium junction near the SA node, the intracavitary P wave amplitude maximizes, confirming optimal tip position.

Question 3

MAGIC criteria are used to determine the most appropriate vascular access device based on:

Accepted Answer

Infusion characteristics, duration, patient condition, and available vessels

Answer

MAGIC (Michigan Appropriateness Guide for Intravenous Catheters) provides evidence-based criteria matching device selection to therapy duration, medication characteristics, and patient factors.

Question 4

A peripherally inserted central catheter (PICC) is confirmed to be in the correct position when the tip is located at:

Accepted Answer

Cavoatrial junction (lower third of SVC to right atrial junction)

Answer

The cavoatrial junction provides optimal hemodilution of infusates, reduces thrombosis risk, and is the target tip position per INS and AVA guidelines.

Question 5

Which technology uses fluoroscopy in real-time to confirm catheter tip position during PICC insertion?

Accepted Answer

Fluoroscopic guidance with contrast injection

Answer

Fluoroscopy combined with contrast injection directly visualizes the catheter tip position in relation to cardiac anatomy, serving as the gold standard for tip confirmation.

(VABC) Vascular Access Board Certification Practice Test

(VABC) Vascular Access Board Certification Practice Test

VABC Vascular Access Devices & Technologies 4