IV Venous Access Devices 3

Question 1

When a totally implantable venous access port is not in use, the recommended flushing interval to maintain patency is:

Accepted Answer

Every 4 weeks (monthly)

Answer

Implanted ports not in active use are typically flushed monthly with heparinized saline to maintain patency per INS guidelines.

Question 2

A patient with a triple-lumen central venous catheter (CVC) asks why three separate lumens are used. The BEST explanation is:

Accepted Answer

It allows simultaneous administration of incompatible medications through separate channels

Answer

Multiple lumens allow incompatible drugs to be infused simultaneously without mixing, and permit blood draws without interrupting infusions.

Question 3

The MOST common insertion site for a peripherally inserted central catheter (PICC) in adults is:

Accepted Answer

Basilic vein

Answer

The basilic vein is the preferred PICC insertion site due to its larger diameter and straighter path to the central circulation.

Question 4

Which complication is UNIQUE to subclavian central venous catheter insertion compared to internal jugular or femoral approaches?

Accepted Answer

Pneumothorax

Answer

Pneumothorax is a specific risk of subclavian insertion due to the proximity of the apex of the lung to the insertion site.

Question 5

A nurse is preparing to access an implanted port. After palpating the septum, the correct needle insertion technique is:

Accepted Answer

Insert perpendicular (90 degrees) through the skin into the center of the septum

Answer

The non-coring Huber needle must be inserted at a 90-degree angle directly into the center of the port septum to avoid damaging the septum.

(IV) Intravenous Therapy Certified Practice Test