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 C
Explanation
Choice A Reason:
Prothrombin time (PT) is a laboratory test that measures the time it takes for blood to clot is incorrect. While PT may be part of a comprehensive evaluation in some cases, it is not typically the initial diagnostic test performed for a TIA. A TIA is caused by a temporary disruption of blood flow to the brain, often due to an embolus or transient blockage in a cerebral artery, rather than a primary disorder of blood clotting.
Choice B Reason:
Complete blood count (CBC) is incorrect. A complete blood count (CBC) is a common laboratory test that evaluates the cellular components of the blood, including red blood cells, white blood cells, and platelets. While CBC can provide valuable information about hematological conditions such as anemia or thrombocytosis, it is not specific to diagnosing the cause of a TIA. TIA is primarily a vascular event related to transient ischemia in the brain rather than a disorder of blood cell counts.
Choice C Reason:
Computerized tomography angiography (CTA) is appropriate. CTA is a non-invasive imaging test that combines computed tomography (CT) scanning with contrast dye to visualize blood vessels throughout the body, including those in the brain. CTA can help identify any blockages, narrowing, or abnormalities in the blood vessels supplying the brain, which may be contributing to the TIA. It provides detailed images of the blood vessels' structure and can help guide further management and treatment decisions.
Choice D Reason:
Transesophageal echocardiogram (TEE) is inappropriate. Transesophageal echocardiogram (TEE) is an imaging test that provides detailed images of the heart and major blood vessels using sound waves. While TEE may be indicated in some cases of TIA to evaluate for potential cardiac sources of emboli (blood clots), such as atrial fibrillation or cardiac valve abnormalities, it is not typically the first-line diagnostic test performed in the emergency department setting for evaluating a TIA. Initial imaging studies such as CTA or magnetic resonance imaging (MRI) of the brain are usually prioritized to assess for acute changes in cerebral blood flow and potential causes of the TIA.
Correct Answer is ["B","D","E"]
Explanation
Choice A Reason:
Loss of teeth is not typically considered a direct factor contributing to obstructive sleep apnea. While the presence of teeth may play a role in maintaining the structure of the oral cavity, it is not a primary risk factor for OSA.
Choice B Reason:
Stroke is correct. Individuals who have had a stroke are at increased risk of developing obstructive sleep apnea. Stroke can cause damage to areas of the brain involved in controlling breathing and upper airway function, leading to disruptions in respiratory control during sleep.
Choice C Reason:
Sleepiness is a symptom commonly associated with obstructive sleep apnea rather than a direct contributing factor. Excessive daytime sleepiness is a consequence of disrupted sleep patterns and recurrent episodes of breathing cessation during the night, which are characteristic features of obstructive sleep apnea.
Choice D Reason:
Fatty deposits is correct. Excessive fatty deposits, particularly around the neck and throat, can contribute to the narrowing and collapse of the upper airway during sleep, increasing the risk of obstructive sleep apnea. Obesity is a significant risk factor for OSA due to the accumulation of fat deposits in the upper airway tissues.
Choice E Reason:
Muscle dysfunction is correct. Muscle dysfunction, particularly of the muscles surrounding the upper airway, can impair the ability of these muscles to keep the airway open during sleep. Weakness or dysfunction of these muscles can lead to increased collapsibility of the upper airway, contributing to obstructive sleep apnea.
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