Which of the following is the most common risk factor for emphysema?
Smoking tobacco
Between 20 to 30 years of age
Asthma
Pollution
The Correct Answer is A
Choice A Reason:
Smoking tobacco is the primary and most significant risk factor for emphysema. Tobacco smoke contains harmful chemicals and toxins that directly damage the lungs. Chronic exposure to cigarette smoke leads to inflammation and destruction of lung tissue, particularly the alveoli, contributing to the development of emphysema.
Choice B Reason:
Between 20 to 30 years of age. While smoking at any age is harmful to lung health, the risk of developing emphysema increases with prolonged exposure to tobacco smoke over many years. Emphysema is typically a disease of middle to older age, with symptoms often appearing after years of smoking.
Choice C Reason:
Asthma is a chronic inflammatory condition of the airways characterized by reversible airflow obstruction and airway hyperresponsiveness. While asthma and emphysema are both respiratory diseases, they have distinct pathophysiological mechanisms and risk factors. Asthma is not a direct cause of emphysema, although some individuals with poorly controlled asthma may develop chronic obstructive pulmonary disease (COPD), which includes emphysema as one of its components.
Choice D Reason:
Pollution is not correct. Environmental pollution, including air pollution from industrial emissions, vehicle exhaust, and particulate matter, can contribute to respiratory problems and exacerbate pre-existing lung conditions. While exposure to pollution can worsen respiratory symptoms and lung function, it is not the primary cause of emphysema. However, long-term exposure to certain pollutants may increase the risk of developing respiratory diseases, including COPD, which encompasses emphysema.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
Pregabalin is incorrect. Pregabalin is a medication used to treat neuropathic pain, seizures, and generalized anxiety disorder. It is not associated with an increased risk of PML.
Choice B Reason:
Natalizumab is correct.: Natalizumab is a monoclonal antibody used to treat relapsing forms of MS. It is associated with an increased risk of developing PML, particularly in individuals who are JC virus antibody positive. Regular monitoring of JC virus antibody status and clinical vigilance is required when using natalizumab to reduce the risk of PML.
Choice C Reason:
Furosemide: Furosemide is a loop diuretic used to treat edema and hypertension. It is not associated with an increased risk of PML.
Choice D Reason:
Metoprolol is incorrect .Metoprolol is a beta-blocker used to treat hypertension, angina, and heart failure. It is not associated with an increased risk of PML.
Correct Answer is B
Explanation
Choice A Reason:
Flying itself is not typically considered a factor that worsens MS manifestations. However, factors related to flying, such as stress, fatigue, changes in routine, and potential exposure to infections, may contribute to symptom exacerbation in some individuals with MS.
Choice B Reason:
Sunbathing is appropriate. Exposure to excessive heat, such as sunbathing or prolonged exposure to hot weather, can lead to temporary worsening of MS symptoms, a phenomenon known as Uhthoff's phenomenon. Increased body temperature can temporarily impair nerve conduction in individuals with MS, resulting in exacerbation of symptoms such as fatigue, weakness, sensory disturbances, and cognitive impairment.
Choice C Reason:
Working in an office is inappropriate. Working in an office environment is not inherently associated with exacerbation of MS manifestations. However, factors such as stress, fatigue, poor ergonomic conditions, and limited mobility during prolonged periods of sitting may contribute to symptom exacerbation in some individuals with MS.
Choice D Reason:
High altitude travel is inappropriate. High altitude travel can exacerbate MS symptoms due to the decreased oxygen levels and potential changes in barometric pressure at high altitudes. Hypoxia (low oxygen levels) at high altitudes may exacerbate fatigue, weakness, and cognitive impairment in individuals with MS. Changes in barometric pressure can also trigger or worsen symptoms such as headaches, sensory disturbances, and balance problems in some individuals with MS.
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