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. Jugular vein distention:
Jugular vein distention is not typically associated with an increased risk of a stroke. It may be indicative of issues related to cardiac or fluid volume status.
B. Carotid bruit:
This is the correct answer. A carotid bruit, an abnormal sound caused by turbulent blood flow through the carotid artery, may indicate the presence of atherosclerosis and increased risk of stroke. It suggests a narrowing or blockage in the carotid artery, which can potentially lead to emboli and subsequent stroke.
C. Nuchal rigidity:
Nuchal rigidity, stiffness of the neck, is associated with conditions such as meningitis but is not a direct risk factor for a stroke.
D. Palpable cervical lymph node:
Palpable cervical lymph nodes may be indicative of infection or inflammation in the head and neck region but are not directly associated with an increased risk of a stroke.
Correct Answer is D
Explanation
A. Thick skin plaques topped by silvery white scales:
This is a characteristic presentation of psoriasis vulgaris, not an indicator of overexposure to PUVA.
B. Tenderness upon palpation and generalized erythema:
This may be associated with various skin conditions but is not specific to overexposure to PUVA.
C. Brown, rough, greasy, wart-like papules on the face:
This description is not consistent with the expected outcomes or side effects of PUVA treatment.
D. Requires sunglasses because sunlight hurts the eyes.
PUVA treatment involves the use of psoralen, a light-sensitizing medication, followed by exposure to ultraviolet A (UVA) light. Overexposure to PUVA can lead to phototoxic reactions, including eye sensitivity to sunlight (photophobia). If the client requires sunglasses because sunlight hurts the eyes, it suggests that the eyes have been affected by the treatment, and the nurse should intervene to prevent further damage.
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