Which flushing solution is commonly used for CVADs?

• A. Ringer's lactate
• B. Normal saline or heparinized saline
• C. Glucose solution
• D. Distilled water

Answer: (B)

The correct choice for flushing solutions commonly used for Central Venous Access Devices (CVADs) is indeed normal saline or heparinized saline. Normal saline (0.9% sodium chloride) is isotonic and is typically used because it effectively maintains patency and prevents clot formation within the catheter. It has a similar osmolarity to blood, which makes it safe for flushing and helps to avoid hemolysis of red blood cells, restoring and maintaining blood flow through the CVAD.

Heparinized saline is another popular choice, especially with long-term CVADs. The addition of heparin is aimed at preventing thrombosis within the catheter, providing anticoagulation that helps keep the lumen clear. This is particularly important since blood can coagulate inside the CVAD if not adequately managed.

Using Ringer's lactate, a solution containing electrolytes and lactate, is less common for flushing CVADs because it is not isotonic with blood and can cause complications such as thrombosis or altered blood electrolyte levels if retained in the catheter.

Glucose solution is typically avoided as a flushing solution for CVADs, as hypertonic or hypotonic solutions may lead to osmotic imbalances and potential vessel irritation.

Dist