VA-BC Device Selection & Insertion Techniques 4

Question 1

Which catheter material is associated with the LOWEST thrombogenicity for PICC lines?

Accepted Answer

Polyurethane or silicone

Answer

Polyurethane and silicone are the preferred materials for PICCs due to their lower thrombogenic and tissue-reactive properties.

Question 2

During PICC insertion, the patient's arm should be positioned at what angle relative to the body?

Accepted Answer

90 degrees (perpendicular to body)

Answer

Abducting the arm to 90 degrees straightens the venous pathway and facilitates PICC advancement toward the central circulation.

Question 3

A power-injectable PICC differs from a standard PICC in that it:

Accepted Answer

Withstands high-pressure contrast injection for CT imaging

Answer

Power-injectable PICCs are rated to withstand the high injection pressures (typically 300 psi) used for CT contrast administration.

Question 4

Which factor is most important in determining catheter-to-vein ratio to reduce thrombosis risk in PICC insertion?

Accepted Answer

Catheter occupying no more than 45% of the vein diameter

Answer

The catheter should occupy no more than 45% of the vein's inner diameter to maintain adequate blood flow and minimize thrombosis risk.

Question 5

An implanted port is accessed using which specialized needle?

Accepted Answer

Huber needle (non-coring needle)

Answer

A Huber needle has a deflected tip designed to prevent coring of the port septum, preserving septum integrity for repeated access.

(VA-BC) Vascular Access Nurse Certification Practice Test