Which method is commonly used for maintaining the patency of a central line?

The maintenance of patency for a central line is crucial for ensuring that the line remains open for medication administration, fluid delivery, and blood sampling. The most effective method for maintaining patency includes using both heparin flush and normal saline flush.

Normal saline flush is often used to clear the line of any medication or blood that may have adhered to the catheter, ensuring that the line remains open and free from occlusions. It is a straightforward method that helps to prevent any clots from forming within the catheter.

On the other hand, heparin flush is utilized primarily in longer-term central venous catheter maintenance. Heparin is an anticoagulant that helps to prevent clot formation in the catheter lumen, effectively maintaining patency over extended periods. The use of heparin can be especially beneficial in patients who require long-term intravenous access.

Using both methods in conjunction maximizes the effectiveness of patency maintenance, addressing both immediate clearance and long-term anticoagulation of the line. Therefore, employing both heparin and normal saline flushes is a widely accepted practice, making the combined approach the correct answer.