The nurse applies a moisture-retentive dressing to a client's wound. The nurse understands that the main advantage of this dressing, rather than a wet dressing, is its ability to:

Choice A rationale

Encouraging adequate water intake is important for overall health, but it does not directly address the client’s fear of undergoing an EEG. Adequate hydration can ensure better conduction of electrical signals, but it has no bearing on the client's anxiety related to a past electrocution incident. Therefore, it would not be effective in alleviating the client's specific fear regarding the EEG procedure.

Choice B rationale

Distracting the client’s attention from the test may temporarily reduce anxiety, but it does not address the underlying fear. The client’s fear stems from a misunderstanding of the EEG procedure, and distraction will not resolve this. It is more effective to provide factual information to dispel the fear.

Choice C rationale

Informing the client that they will not experience any electrical shock is a crucial step in alleviating their fear. An EEG records brain activity through electrodes placed on the scalp; it does not involve sending electrical currents into the body. Clarifying this fact helps address the root cause of the client’s fear, providing reassurance and reducing anxiety.

Choice D rationale

Informing the client that they will experience only mild electrical shock is incorrect and misleading. An EEG does not deliver any electrical shock to the client. Providing inaccurate information could increase the client’s anxiety and distrust. Proper education about the procedure's safety is essential for alleviating the client’s fear.

Choice A rationale

Aspiration of synovial fluid for serologic testing is a procedure known as arthrocentesis, which involves extracting joint fluid for analysis. While useful for diagnosing conditions like infections or arthritis, it is not the same as arthrography, which involves imaging.

Choice B rationale

Injection of corticosteroids into the client's knee joint to facilitate ROM is a therapeutic procedure to reduce inflammation and improve movement in conditions like arthritis, but it is not part of an arthrography procedure.

Choice C rationale

Injection of a contrast agent into the knee joint prior to ROM exercises is a key part of arthrography. The contrast agent helps to enhance the imaging of the joint structures during movement, allowing for a detailed assessment of the joint.

Choice D rationale

Replacement of the client's synovial fluid with a synthetic substitute is not related to arthrography. This description aligns more with viscosupplementation, a treatment for osteoarthritis.