The nurse has conducted a cancer prevention community education program. In evaluating the participants understanding of the carcinogens, which statement indicates an accurate understanding?
Carcinogens are substances that contain cancerous cells.
Substances that change a cell so that it becomes cancerous are potential sources of cancer.
Environmental factors such as sunlight and chemicals can cause cancer to spread.
Carcinogens are in the environment and cannot be avoided.
The Correct Answer is B
A. Carcinogens are substances that contain cancerous cells:
This statement is incorrect. Carcinogens are substances that have the potential to cause cancer, but they do not necessarily contain cancerous cells themselves.
B. Substances that change a cell so that it becomes cancerous are potential sources of cancer:
This is the correct answer. Carcinogens are agents that can induce changes in the genetic material of cells, leading to the development of cancer. They can initiate or promote the process of carcinogenesis.
C. Environmental factors such as sunlight and chemicals can cause cancer to spread:
This statement is not accurate. Carcinogens can contribute to the initiation or promotion of cancer, but the spread of cancer (metastasis) involves complex biological processes and is not directly caused by environmental factors.
D. Carcinogens are in the environment and cannot be avoided:
This statement is not accurate. While carcinogens may be present in the environment, efforts can be made to minimize exposure and adopt preventive measures. Avoidance of known carcinogens and the promotion of a healthy lifestyle can contribute to cancer prevention.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Increased temperature to the lower extremity:
While increased temperature could indicate inflammation or infection, it is not as immediately concerning as impaired circulation.
B. Right foot pale with sluggish capillary refill.
This finding suggests a potential impairment in blood flow to the right foot, which could be due to complications such as compartment syndrome or impaired circulation. Compartment syndrome is a serious condition that occurs when there is increased pressure within a muscle compartment, leading to reduced blood flow. Pale color and sluggish capillary refill indicate compromised circulation and require prompt intervention to prevent further damage.
C. Circumferential edema of the right foot:
Edema is a common finding after a fracture and cast application. However, in the context of pale color and sluggish capillary refill, it may indicate increased pressure within the compartment, requiring immediate attention.
D. Complaint of throbbing right leg pain:
Pain is a common complaint after a fracture, and throbbing pain may be expected. However, the priority is to address the potential compromise in circulation indicated by the pale color and sluggish capillary refill.
Correct Answer is D
Explanation
A. Blood pH level:
The blood pH level is important for assessing the acid-base balance in the body. However, in the context of purulent drainage from a wound, it is not the primary laboratory value to review for signs of infection.
B. Platelet count:
Platelet count is important for assessing blood clotting ability. While it is a valuable parameter in overall care, it may not be directly related to the observation of purulent drainage from a wound, which typically suggests infection rather than a clotting issue.
C. Hematocrit:
Hematocrit measures the proportion of blood that is cellular. Like platelet count, it is important for assessing overall blood composition and oxygen-carrying capacity. However, it may not be the first parameter to review when evaluating signs of infection.
D. White blood cell (WBC) count:
The WBC count is a crucial parameter when assessing for infection. An elevated WBC count is a common response to infection as the body mobilizes its immune defenses. Reviewing the WBC count is particularly relevant when purulent drainage is observed, as it may indicate an inflammatory response to infection.
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