Certified Registered Nurse Infusion (CRNI) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the Certified Registered Nurse Infusion (CRNI) Exam with our quiz. Access flashcards and multiple-choice questions, each with detailed explanations and hints. Prepare effectively for your certification!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


What is the main advantage of using silicone in PICC lines?

  1. It is the least expensive material

  2. It minimizes the risk of thrombosis

  3. It is the most flexible material

  4. It prevents infections effectively

The correct answer is: It minimizes the risk of thrombosis

Silicone is primarily used in PICC (Peripherally Inserted Central Catheter) lines due to its excellent biocompatibility and flexibility, but its main advantage lies in its ability to minimize the risk of thrombosis. The design and material of silicone tend to promote better blood flow characteristics within the catheter, which helps to reduce the likelihood of clot formation. The surface of silicone is smooth and less reactive with blood components compared to other materials, which contributes to this lower risk. While flexibility is an important property of silicone, which allows for easier insertion and comfort, it is not the primary reason it is chosen for use in PICC lines. Additionally, while cost and infection prevention are important considerations for any medical device, the first priority identified in research and clinical outcomes for PICC lines is reducing thrombosis risk, making it a significant advantage of using silicone in these applications.