A newly diagnosed patient asks the nurse to explain asthma. Which of the following explanations by the nurse is correct?
"Your airways are inflamed and spastic."
"You have fluid in your lungs that is causing shortness of breath."
"Your airways are stretched and nonfunctional."
"You have a low-grade infection that keeps your bronchial tree irritated."
The Correct Answer is A
A. Asthma is a chronic respiratory condition characterized by inflammation and hyperresponsiveness of the airways. This inflammation leads to bronchoconstriction, causing symptoms like wheezing, shortness of breath, chest tightness, and coughing. This description accurately captures the primary pathological features of asthma.
B. Fluid in the lungs, also known as pulmonary edema, is not a characteristic of asthma. Pulmonary edema is usually associated with conditions such as heart failure or acute respiratory distress syndrome (ARDS), not asthma.
C. Airway stretching and nonfunctionality are not characteristics of asthma. Conditions like bronchiectasis involve permanent dilation and damage to the airways, leading to chronic infections and impaired clearance of mucus, but this is different from asthma.
D. Asthma is not primarily caused by an infection, although infections can trigger asthma exacerbations. The primary issue in asthma is chronic inflammation and hyperresponsiveness of the airways, which are not caused by a low-grade infection but by a combination of genetic and environmental factors.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. This range is generally considered acceptable for most patients with COPD. It provides a balance between ensuring adequate oxygenation while avoiding the risk of oxygen toxicity. Oxygen saturation levels within this range can help alleviate symptoms of hypoxemia without causing hyperoxia.
B. Oxygen saturation levels below 90% can lead to significant hypoxemia and exacerbate respiratory distress in individuals with COPD. Maintaining oxygen saturation levels above 90% is typically recommended to prevent complications associated with hypoxemia.
C. This range is appropriate for some patients but it may not be ideal for all patients with COPD. Oxygen saturation levels at the higher end of this range (e.g., 100%) can increase the risk of oxygen toxicity in patients with COPD who retain carbon dioxide (CO2) due to their chronic respiratory condition.
D. Oxygen saturation levels within this range help to balance the need for oxygen supplementation with the risk of hyperoxia and oxygen toxicity. However, individual patient factors, such as the severity of COPD, baseline oxygen saturation levels, and comorbidities, should be considered when determining the target range for oxygen saturation.
Correct Answer is A
Explanation
A. Type 1 diabetes is an autoimmune condition where the body's immune system attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the pancreas produces little to no insulin, which is essential for regulating blood glucose levels.
B. Type 1 diabetes is not reversible. It is a lifelong condition that requires ongoing management with insulin therapy. While diet, exercise, and weight management are important for overall health and can help manage blood glucose levels, they cannot reverse type 1 diabetes.
C. This description is characteristic of type 2 diabetes, not type 1. In type 2 diabetes, the body’s cells become resistant to the effects of insulin, and the pancreas may not produce enough insulin. In type 1 diabetes, the problem is the lack of insulin production due to autoimmune destruction of the pancreatic beta cells.
D. Insulin is not released into the gastrointestinal tract. Insulin is a hormone that is released into the bloodstream by the pancreas. Its primary role is to help regulate blood glucose levels by facilitating the uptake of glucose into the body's cells for energy.
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