A nurse is studying the differences between normal cells and benign tumor cells. What information is included in this?
Benign tumors have lost their cellular regulation from contact inhibition.
Benign tumors typically grow in the wrong place or at the wrong time.
Benign tumors grow through invasion of other tissue.
The loss of characteristics of the parent cells is referred to as anaplasia.
The Correct Answer is B
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is Choice B.
Choice A rationale: Massaging the site with scented oils is not recommended as it may further irritate the inflamed tissue. Additionally, scented oils can cause allergic reactions or skin irritation, worsening the client's discomfort.
Choice B rationale: Applying warm compresses to the site increases blood flow, reduces inflammation, and provides pain relief. Warm compresses also promote healing by improving circulation and reducing edema, making them an appropriate intervention for phlebitis.
Choice C rationale: Administering topical lidocaine to the site is generally not recommended without a prescription. Although it may provide localized pain relief, it can mask underlying issues and delay appropriate medical assessment and treatment.
Choice D rationale: Administering prescribed oral pain medication can provide systemic pain relief. However, it may not be as effective as a localized treatment for reducing inflammation and discomfort at the site of the peripheral vascular access device.
Correct Answer is B
Explanation
Choice A rationale:
Administering an antipyretic would lower the client's fever, but it would not address the underlying cause of the sepsis. Antipyretics can mask important signs and symptoms of infection, making it more difficult to diagnose and treat the sepsis. It's important to identify the causative organism of sepsis to initiate appropriate antibiotic therapy.
Therefore, obtaining cultures to identify the causative organism is the priority action.
Choice B rationale:
Obtaining specified cultures is the most important action for a client with possible sepsis because it allows for the identification of the causative organism.
This information is essential for selecting the appropriate antibiotic therapy. Cultures should be obtained as soon as possible, before antibiotics are administered.
Choice C rationale:
While administering antibiotics is an important part of the treatment for sepsis, it is not the first action that the nurse should take.
Antibiotics should be administered after the causative organism has been identified.
Administering antibiotics before cultures are obtained can make it more difficult to identify the causative organism.
Choice D rationale:
Placing the client in isolation is important to prevent the spread of infection, but it is not the first action that the nurse should take.
The priority is to identify the causative organism and initiate appropriate treatment. The client can be placed in isolation after cultures have been obtained.
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