A nurse learns that which of the following is the single biggest risk factor for developing cancer?
Advancing age
Exposure to tobacco
Exposure to occupational chemicals
Infection with an oncovirus.
The Correct Answer is B
Choice A rationale:
While advancing age is a significant risk factor for cancer, it is not considered the single biggest risk factor. The risk of developing cancer does increase with age, primarily due to the accumulation of DNA damage over time. This damage can arise from various sources, including exposure to carcinogens, errors in DNA replication, and oxidative stress. With age, the body's ability to repair DNA damage also declines, making cells more susceptible to cancerous changes.
However, it's important to note that cancer can develop at any age, and even younger individuals can be affected if exposed to other significant risk factors.
Choice B rationale:
Exposure to tobacco is widely recognized as the single biggest risk factor for developing cancer. It is estimated to be responsible for about 25-30% of all cancer deaths worldwide.
Tobacco smoke contains over 70 known carcinogens, which are substances that can damage DNA and lead to cancer. These carcinogens can affect various organs in the body, including the lungs, mouth, throat, esophagus, stomach, pancreas, liver, bladder, kidney, cervix, and colon.
The risk of cancer increases with the amount and duration of tobacco use. Even exposure to secondhand smoke can increase the risk of cancer.
Quitting tobacco use is the most effective way to reduce the risk of cancer.
Choice C rationale:
Exposure to occupational chemicals is a known risk factor for certain types of cancer, such as lung cancer, bladder cancer, and leukemia. However, it is not considered the single biggest risk factor for developing cancer overall.
The risk of cancer from occupational chemicals depends on the specific chemical, the level of exposure, and the duration of exposure.
Workplace safety measures, such as using protective equipment and limiting exposure to hazardous chemicals, can help reduce the risk of cancer.
Choice D rationale:
Infection with certain viruses, known as oncoviruses, can increase the risk of developing certain types of cancer. For example, infection with human papillomavirus (HPV) can increase the risk of cervical cancer, and infection with hepatitis B virus (HBV) can increase the risk of liver cancer.
However, oncoviruses are not considered the single biggest risk factor for developing cancer overall. Vaccines are available to protect against some oncoviruses, such as HPV and HBV.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
While a young patient who lives alone may need some assistance with post-discharge care, they have nearby family and friends who can likely provide this support. This patient's situation does not present the same level of complexity and risk as the other patients described in the options.
The presence of nearby family and friends can offer practical and emotional support, helping with tasks such as transportation, meal preparation, and medication management. This social support network can play a crucial role in ensuring a smooth transition from the hospital to home.
Additionally, the patient's young age suggests a higher likelihood of physical and cognitive abilities that can facilitate self-care and adherence to discharge instructions.
Choice B rationale:
The older adult who lives alone and has memory loss has the greatest need for the nurse to consult with other members of the healthcare team regarding post-discharge care. This patient's situation presents several significant challenges that necessitate a collaborative approach to ensure safety and well-being:
Memory loss: The patient's memory loss may impair their ability to follow discharge instructions, manage medications, and maintain personal safety. This raises concerns about potential medication errors, missed appointments, and risks of falls or accidents.
Living alone: The patient's lack of immediate support at home further compounds these risks. Without someone to provide reminders, assistance with tasks, or monitoring for changes in health status, the patient's vulnerability increases.
Potential for social isolation: Living alone with memory loss can also lead to social isolation, which can negatively impact mental and physical health.
Choice C rationale:
While a married young adult who is the primary caregiver for children may face challenges in balancing their own recovery with caregiving responsibilities, they have a spouse who can provide support and assistance. This patient's situation does not present the same degree of risk as the older adult with memory loss living alone.
Choice D rationale:
The middle-aged patient who has undergone knee replacement and requires physical therapy will need support and guidance, but their needs are primarily focused on physical rehabilitation and pain management. These needs can often be addressed through standard discharge planning and coordination with physical therapy services.
Correct Answer is D
Explanation
Rationale for Choice A:
Hydroxychloroquine does not typically cause hair loss as a significant side effect. While some anecdotal reports have suggested hair thinning as a possibility, it's not a well-established or common occurrence in clinical studies.
If a patient experiences hair loss while on hydroxychloroquine, it's essential to rule out other potential causes, such as underlying medical conditions, stress, or nutritional deficiencies.
It's also important to note that some individuals may have a personal predisposition to hair loss, and medications can sometimes trigger or exacerbate this issue.
Rationale for Choice B:
Hydroxychloroquine is not known to cause a burst of energy. In fact, some patients may experience fatigue or drowsiness as a side effect.
It's crucial to inform patients about potential side effects to manage expectations and promote adherence to treatment.
If a patient experiences unexpected energy changes while taking hydroxychloroquine, it's essential to report this to their healthcare provider for further evaluation.
Rationale for Choice C:
Hydroxychloroquine is generally recommended to be taken with food or milk to reduce potential gastrointestinal side effects such as nausea and vomiting.
Taking it on an empty stomach could increase the risk of these side effects, which could impact medication adherence and effectiveness.
Rationale for Choice D:
Retinal damage is the most serious adverse effect of hydroxychloroquine. It can lead to irreversible vision loss if not detected and managed early.
Patients taking hydroxychloroquine must undergo regular eye examinations to monitor for any signs of retinal toxicity.
Early detection and prompt discontinuation of the medication can often prevent permanent vision loss.
It's crucial for nurses to educate patients about this potential risk and emphasize the importance of regular eye exams.
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