PICC PICC Equipment & Device Selection

Question 1

Which catheter material is most commonly used for PICC lines because it softens at body temperature and minimizes vessel trauma?

Accepted Answer

Polyurethane

Answer

Polyurethane is the most common PICC material because it is biocompatible, flexible, and softens at body temperature, reducing irritation and vessel injury.

Question 2

A single-lumen PICC is MOST appropriate for which of the following patients?

Accepted Answer

A patient requiring a single six-week course of IV antibiotics

Answer

Single-lumen PICCs are ideal when only one type of infusion is required, such as a single antibiotic course, minimizing catheter size and thrombosis risk.

Question 3

What is the standard French size range used for adult PICC lines?

Accepted Answer

3–6 Fr

Answer

Adult PICCs typically range from 3 to 6 French, with 4–5 Fr common for single-lumen and 5–6 Fr for dual-lumen devices.

Question 4

Which PICC valve design remains closed at neutral pressure, preventing blood reflux and often eliminating the need for heparin flushes?

Accepted Answer

Groshong valve PICC

Answer

The Groshong three-position slit valve remains closed at rest, preventing backflow and air entry, which often makes heparin flushes unnecessary.

Question 5

To reduce thrombosis risk, the catheter-to-vein ratio for a PICC should ideally not exceed:

Accepted Answer

33%

Answer

A catheter-to-vein ratio no greater than 33% (one-third of vein diameter) allows adequate blood flow around the catheter, reducing the risk of thrombosis.

(PICC) Peripherally Inserted Central Catheter Certified Nurse Practice Test

(PICC) Peripherally Inserted Central Catheter Certified Nurse Practice Test

PICC PICC Equipment & Device Selection