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 C
Explanation
Rationale for Choice A:
Documenting and continuing to monitor is a crucial aspect of nursing care; however, in this scenario, it would not be the first action to take. The significant drop in blood pressure warrants immediate intervention to prevent potential complications.
While monitoring is essential, it does not actively address the underlying cause of the hypotension. Relying solely on monitoring could delay necessary interventions and potentially compromise patient safety.
It's important to balance monitoring with timely interventions to ensure optimal patient outcomes. In this case, calling for assistance takes priority over documentation and continued monitoring.
Rationale for Choice B:
Repeating the blood pressure in 15 minutes could delay critical interventions if the hypotension is severe. Timely action is crucial to maintain adequate tissue perfusion and prevent organ damage.
Waiting to recheck the blood pressure could potentially worsen the patient's condition and lead to adverse outcomes. It's essential to act promptly when a significant change in vital signs occurs.
Rationale for Choice D:
While notifying the primary healthcare provider is an important step, it may not be the most immediate action in this situation. The Rapid Response Team is specifically trained to handle acute patient deterioration and can provide timely interventions.
The Rapid Response Team can initiate life-saving measures, such as administering fluids or medications, while the primary healthcare provider is being notified. This ensures that the patient receives prompt and appropriate care.
Rationale for Choice C:
Calling the Rapid Response Team is the most appropriate first action in this scenario because it ensures a rapid and coordinated response to the patient's hypotension.
The Rapid Response Team can quickly assess the patient, initiate interventions, and potentially prevent further complications. They can also facilitate communication and collaboration among healthcare providers.
Early activation of the Rapid Response Team has been shown to improve patient outcomes in various clinical settings, including postoperative care.
Correct Answer is B
Explanation
Choice A rationale:
Contact inhibition is a normal mechanism that regulates cell growth. When normal cells come into contact with each other, they stop growing. This prevents uncontrolled growth and the formation of tumors.
Benign tumor cells do not typically lose contact inhibition. They still respond to contact signals from neighboring cells and stop growing when they come into contact with each other.
However, they may grow in an uncontrolled manner due to other factors, such as mutations in genes that regulate cell growth.
Choice C rationale:
Invasion is a characteristic of malignant (cancerous) tumors, not benign tumors. Malignant tumors have the ability to invade surrounding tissues and spread to other parts of the body.
Benign tumors, on the other hand, are localized and do not invade surrounding tissues. They may grow and compress nearby tissues, but they do not spread.
Choice D rationale:
Anaplasia is a term used to describe the loss of differentiation of cells in a tumor. This means that the cells no longer resemble the normal cells from which they originated.
Anaplasia is a characteristic of malignant tumors, not benign tumors. Benign tumor cells typically retain some of the characteristics of the parent cells.
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