Line Insertion & Maintenance Flashcards

What is the ideal vein for PICC insertion?

Answer: Basilic vein

The basilic vein is generally considered the ideal vein for PICC insertion due to its large diameter, straight course, and superficial location in the upper arm. These characteristics make it easier to access and navigate the catheter, reducing the risk of complications like nerve damage or vessel trauma. Its size also allows for better blood flow around the catheter, minimizing the risk of thrombosis.

What is a key step before insertion?

Answer: Hand hygiene and sterile technique

Before any invasive procedure like PICC insertion, meticulous hand hygiene and strict adherence to sterile technique are paramount. These practices prevent the introduction of microorganisms into the bloodstream during the procedure, significantly reducing the risk of catheter-related infections. Maintaining a sterile field and using appropriate personal protective equipment are critical components.

How often should PICC dressings be changed?

Answer: Every 7 days or if soiled

Transparent semipermeable dressings used for PICC lines should typically be changed every 7 days to maintain a clean and secure site. However, if the dressing becomes soiled, damp, loose, or compromised in any way, it must be changed immediately. This proactive approach helps prevent bacterial colonization under the dressing and reduces the risk of infection.

What solution is used to flush PICC lines?

Answer: Normal saline or heparin

To maintain patency and prevent occlusion of PICC lines, they are routinely flushed with either normal saline or a dilute heparin solution. Normal saline is used to clear medication residue and prevent intraluminal clotting, while heparin, an anticoagulant, is often used for catheters that are not in continuous use to prevent thrombus formation within the lumen. The specific solution depends on facility policy and catheter type.

Why use ultrasound during insertion?

Answer: Visualize and guide vein access

Ultrasound guidance is a critical tool during PICC insertion as it allows the clinician to visualize the target vein in real-time. This visualization helps in identifying suitable veins, assessing their patency, and guiding the needle precisely into the vessel. Using ultrasound significantly increases insertion success rates and reduces the risk of complications like arterial puncture or nerve damage.

What is the purpose of a securement device?

Answer: Stabilize catheter and prevent dislodgement

A securement device is essential for anchoring the PICC catheter at the insertion site. Its primary purpose is to prevent accidental dislodgement or migration of the catheter, which could lead to loss of venous access, infection, or other complications. Proper securement ensures the catheter remains in its intended position, maintaining its functionality and patient safety.

What PPE is required during insertion?

Answer: Sterile gloves, gown, mask, cap

PICC insertion is a sterile procedure that requires maximum barrier precautions to prevent infection. This includes the use of sterile gloves, a sterile gown, a mask, and a cap for the inserter. These measures create a sterile field and protect both the patient from environmental pathogens and the healthcare provider from potential exposure to bloodborne pathogens.

How should patency be maintained?

Answer: Flush regularly with appropriate solution

Maintaining patency of a PICC line is crucial for its functionality and involves regular flushing. Flushing with normal saline or heparin, as per protocol, clears the lumen of blood, medication residue, and fibrin, preventing the formation of clots that could lead to occlusion. Consistent flushing ensures the catheter remains open and ready for use.

When is PICC placement confirmed?

Answer: After chest X-ray confirmation

The final tip placement of a PICC must be confirmed before the catheter can be used for infusions. A chest X-ray is the standard method to verify that the catheter tip is correctly positioned in the lower third of the superior vena cava, just above the right atrium. This confirmation prevents potential complications associated with malposition, such as cardiac arrhythmias or vessel erosion.