Choice B rationale:
Benign tumors typically grow in the wrong place or at the wrong time. This is a key distinguishing feature of benign tumors compared to normal cells. Normal cells have precise mechanisms that control their growth, ensuring they divide and multiply only when and where they are needed. Benign tumors, however, have disruptions in these regulatory mechanisms, leading to abnormal growth patterns. This means they may grow in locations where they don't belong or continue to grow even when they are no longer needed.
Here's a detailed explanation of why the other choices are incorrect:
Choice A:
Benign tumors have not lost their cellular regulation from contact inhibition. Contact inhibition is a process that stops normal cells from growing when they come into contact with other cells. Benign tumors still maintain this ability, which helps to limit their growth and prevent them from spreading to other tissues.
Choice C:
Benign tumors do not grow through invasion of other tissue. Invasion is a hallmark feature of malignant tumors (cancers). Benign tumors, on the other hand, typically grow as encapsulated masses, meaning they are surrounded by a well-defined border that separates them from surrounding tissues. They do not infiltrate or invade surrounding structures.
Choice D:
Anaplasia refers to the loss of differentiation and resemblance to the parent cells, which is a characteristic of malignant tumors, not benign tumors. Benign tumors still maintain a degree of differentiation, meaning they retain some of the characteristics of the normal cells from which they originated.

Choice A rationale:
It is incorrect to state that the client will not be able to bathe with a central vascular access device.
While certain precautions are necessary to keep the device dry and clean during bathing, bathing is still possible and important for maintaining hygiene.
The nurse should provide specific instructions on how to protect the device during bathing, such as using a waterproof cover or avoiding direct water contact.
Choice B rationale:
It is inaccurate to claim that there is no risk of infection associated with a central vascular access device, even when sterile technique is used during insertion.
Infection is a serious potential complication, and it's crucial to emphasize ongoing infection prevention measures to the client.
The nurse should educate the client about signs and symptoms of infection to watch for and the importance of prompt reporting to healthcare providers.
Choice C rationale:
It is not always necessary to wear a sling on the arm with the central vascular access device.
The need for a sling may depend on the type of device, the client's condition, and the healthcare provider's recommendations.
If a sling is indicated, the nurse should provide instructions on proper use and care to maintain comfort and prevent complications.
Choice D rationale:
This is the correct statement to include in the client's teaching.
Thorough cleaning of the connections prior to accessing the device is essential for preventing infection.
The client should be empowered to advocate for themselves and ensure that all providers follow proper infection control procedures.