Final answer:
The correct statement about IV therapy is that nursing assistants will observe the IV site for problems. Other tasks such as insertion, removal, or changing IV lines are generally performed by nurses or doctors. Nursing assistants may assist under supervision in certain tasks, but they must always adhere to strict procedures and guidelines.
Step-by-step explanation:
Among the statements provided regarding IV therapy, the true statement is that nursing assistants will observe the IV site for problems. It is part of the nursing assistant's role to monitor the IV site for any signs of complications, such as infection, inflammation, or infiltration. Inserting IV lines, removing them, or changing them when the bag is empty are generally responsibilities of the nursing staff or physicians, depending on hospital protocols and state regulations. In some settings, nursing assistants under the direct supervision of a registered nurse may assist with tasks related to dialysis treatments, but they must adhere to strict procedures to ensure patient safety and maintain sterility.
In cases where an IV solution needs to be prepared, such as diluting a stock solution of KCl with a sterile solution, it is imperative to have the appropriate healthcare professional, who is qualified and trained for such procedures, to perform these tasks. Nursing assistants may assist in preparation under supervision but must ensure they understand and can perform proper dilution calculations to achieve the needed concentration.
Moreover, maintaining the correct height for IV bags is critical to ensure proper fluid delivery. For instance, an IV bag must be placed at least 0.24 m above the entry point into the patient's arm to facilitate the flow of the fluid.