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.

Answer and Explanation

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.

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Free Nursing Study Resources

Correct Answer is D

Explanation

Rationale for Choice A:
Documentation is essential for communication and continuity of care, but it is not the most immediate priority in this situation.
The nurse should document the episode of vomiting, including the time, amount, and characteristics of the vomitus, as well as any associated symptoms or interventions.
However, auscultating lung sounds should be done first to assess for potential aspiration, which is a more urgent concern.
Rationale for Choice B:
Offering dry toast may be appropriate after the nurse has assessed for aspiration and determined that it is safe for the client to resume oral intake.
However, it is not the most important action at this time.
The nurse should first assess the client's respiratory status and address any potential complications.
Rationale for Choice C:
Rest is important for healing and recovery, but it is not the most immediate priority in this situation. The nurse should first assess the client's respiratory status and address any potential complications. Once the client is stable, the nurse can then encourage rest.
Rationale for Choice D:
Auscultating lung sounds is the most important action for the nurse to take after a client vomits.
This is because aspiration of vomitus is a serious complication that can lead to pneumonia, respiratory distress, and even death.
By auscultating lung sounds, the nurse can assess for signs of aspiration, such as crackles, wheezing, or diminished breath sounds.
If aspiration is suspected, the nurse can initiate appropriate interventions, such as suctioning, oxygen therapy, and positioning the client to facilitate drainage of secretions.

A. 1 ml B. 1.5 ml C. 1.3 ml D. 2 ml

Correct Answer is C

Explanation

Step 1: Divide the prescribed dose (40 mg) by the concentration on hand (30 mg/mL).

Step 2: Perform the calculation: 40 mg ÷ 30 mg/mL = 1.3333 mL.

Step 3: Round the answer to the nearest tenth: 1.3333 mL rounds to 1.3 mL.

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A nurse is studying the differences between normal cells and benign tumor cells. What information is included in this?

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Naxlex Comprehensive Predictor Exams

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