What is the proper method to prepare for intermittent venous access?

The proper method to prepare for intermittent venous access involves using a saline or heparin lock and flushing it as needed. This method maintains patency of the intravenous access site, ensuring that the catheter remains open and free of blockages, which is crucial for effective medication delivery. Flushing helps to clear any residual medications and prevents clot formation inside the catheter.

Using a saline or heparin lock is a standard practice in IV therapy, allowing for intermittent access without the need to continuously infuse fluids, thus minimizing the risk of fluid overload and potential complications associated with prolonged catheter use. Regular flushing after medications and prior to accessing the lock ensures that the venous line is functioning properly and prevents complications like thrombosis.

The other choices do not adhere to proper IV therapy protocols. For instance, administering an injection without prior preparation may lead to complications and does not ensure the patency and cleanliness of the access line. Applying a warm compress may be beneficial for other situations, such as improving circulation or reducing discomfort, but it is not a standard preparation step for accessing an IV lock. Finally, relying solely on an IV pump for administration is an option, but it does not address the protocols necessary to prepare an intermittent lock effectively, which requires regular flushing and