Carcinogens are factors related to the formation of various malignancies. Which factor has the greatest impact on the development of all cancers?

chemical agents

environmental factors

viruses

defective genes

Answer and Explanation

The Correct Answer is B

A. Chemical agents: Chemical agents (e.g., tobacco smoke, asbestos) are significant carcinogens but are not the most influential across all types of cancer.

B. Environmental factors: Environmental factors, including exposure to radiation, chemicals, and lifestyle choices, have a broad impact on cancer development. This is the most comprehensive factor, as it encompasses various elements that contribute to cancer risk.

C. Viruses: Certain viruses (e.g., HPV, Hepatitis B) are linked to specific cancers, but they are not the primary cause of most cancers.

D. Defective genes: Genetic mutations play a critical role in cancer development, but they are often triggered by environmental factors, making environmental factors the most significant overall.

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Correct Answer is A

Explanation

A. "My condition is a degenerative brain disorder caused by nutrient deficiency." Wernicke encephalopathy is caused by thiamine (vitamin B1) deficiency, which is often due to chronic alcoholism. The condition is associated with neurological damage from this nutrient deficiency, making this statement accurate.

B. "There is swelling of my brain that is caused by alcohol consumption." Wernicke encephalopathy is not characterized by brain swelling but by neurological damage due to thiamine deficiency.

C. "The inability of my liver to metabolize the alcohol caused this condition." While liver dysfunction can be associated with alcohol use, Wernicke encephalopathy is specifically due to thiamine deficiency, not liver metabolism issues.

D. "Toxins from the alcohol I drank have caused my brain to swell." This statement is incorrect as Wernicke encephalopathy is related to thiamine deficiency rather than brain swelling from alcohol toxins.

A. Report the finding so a sleep medication can be prescribed. B. Clarify what the client means by trouble falling asleep. C. Ask the client what they do before going to bed. D. Question the client about their use of caffeine.

Correct Answer is B

Explanation

A. Report the finding so a sleep medication can be prescribed. While this might eventually be necessary, it's premature to suggest medication without further assessing the problem. Other interventions could be tried first.

B. Clarify what the client means by trouble falling asleep. Clarifying the client's statement is essential to understand the specific nature of the sleep problem, such as how long it takes to fall asleep, how often it occurs, and whether there are any contributing factors. This is a critical step in assessment before any further action.

C. Ask the client what they do before going to bed. This is a good follow-up question, but it should come after clarification of what the client means by trouble falling asleep. Understanding pre-bedtime routines is important but secondary to defining the issue.

D. Question the client about their use of caffeine. While this is a relevant question that could affect sleep patterns, it should follow after understanding the client's specific sleep issues.

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Carcinogens are factors related to the formation of various malignancies. Which factor has the greatest impact on the development of all cancers?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is caring for a client with Wernicke encephalopathy. The nurse determines that teaching has been effective when the client makes which statement?

Correct Answer is A

Explanation

During the interview of a client, the client states, "I have trouble falling asleep." Which action would be appropriate for a nurse to do next?

Correct Answer is B

Explanation

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