What is the most effective method to prevent an asthma exacerbation?
Eat a healthy balanced diet.
Exercise regularly.
Identify and avoid triggers.
Create a plan for exacerbations.
The Correct Answer is C
Choice A rationale
Maintaining a healthy balanced diet is important for general health and immune function, but it is not the most specific or effective way to prevent an asthma exacerbation. While some specific food allergies can trigger asthma, general nutrition does not directly address the hyper-responsiveness of the airways. Asthma is an inflammatory condition triggered by specific environmental factors; therefore, dietary choices have a limited impact on the frequency of acute attacks compared to direct trigger management.
Choice B rationale
Regular exercise is beneficial for cardiovascular health and can improve lung capacity over time. However, for many individuals with asthma, exercise itself can be a trigger for an exacerbation, known as exercise-induced bronchospasm. While patients are encouraged to stay active, exercise does not serve as a primary preventative measure against triggers like pollen, dust, or smoke. Relying on exercise alone without addressing environmental triggers would be an ineffective strategy for long-term asthma control and prevention.
Choice C rationale
Identifying and avoiding triggers is the cornerstone of asthma management. Asthma exacerbations are caused by an exaggerated inflammatory response to specific stimuli such as allergens, tobacco smoke, cold air, or chemical irritants. By eliminating these triggers from the environment, the patient can prevent the inflammatory cascade from starting. This proactive approach significantly reduces the need for rescue medications and prevents the airway remodeling that occurs with frequent attacks, making it the most effective prevention method.
Choice D rationale
Creating an asthma action plan for exacerbations is essential for managing the disease, but it is a reactive strategy rather than a primary preventative one. An action plan tells a patient what to do once symptoms have already started or when peak flow readings drop. While it improves outcomes and prevents hospitalizations, the most effective way to avoid the need for the plan in the first place is to prevent the onset of the exacerbation by avoiding known triggers. .
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Hypoglycemia refers to blood glucose levels that are too low, typically below 70 mg/dL. This is an acute complication of diabetes management, often caused by too much insulin or oral medications, skipped meals, or excessive exercise. It does not cause high blood sugar or severe dehydration. While dangerous, it is the opposite of the hyperosmolar state described, which involves extreme hyperglycemia and the massive osmotic diuresis that leads to profound fluid loss.
Choice B rationale
Diabetic ketoacidosis is an acute complication characterized by hyperglycemia, ketosis, and metabolic acidosis. While it involves high blood sugar and dehydration, it is much more common in type 1 diabetes. In type 2 diabetes, there is usually enough circulating insulin to prevent the breakdown of fats into ketones, so patients rarely develop the significant ketosis seen in DKA. Instead, they develop much higher glucose levels without the corresponding acidosis found in DKA.
Choice C rationale
Hyperosmolar hyperglycemic syndrome is a life-threatening complication most common in type 2 diabetes. It is characterized by extreme hyperglycemia, often exceeding 600 mg/dL, which creates a hyperosmolar extracellular environment. This draws water out of the cells and into the blood, leading to massive osmotic diuresis and severe dehydration. Because type 2 diabetics have some residual insulin, they avoid ketosis, but the dehydration is often much more severe than that seen in ketoacidosis.
Choice D rationale
Renal failure can be a chronic complication of long-term, poorly controlled diabetes due to nephropathy, but it is not an acute complication characterized by high blood sugar and dehydration. Rather, renal failure is a result of the damage caused by chronic hyperglycemia over many years. While acute kidney injury can occur during a crisis like HHS due to severe hypovolemia, it is not the name of the metabolic syndrome itself.
Correct Answer is A
Explanation
Choice A rationale
Autonomic dysreflexia typically occurs in spinal cord injuries at or above the T6 level. When a noxious stimulus below the injury triggers a massive sympathetic discharge, the body attempts to compensate via the parasympathetic nervous system. The vagus nerve sends signals to the heart to slow down, resulting in bradycardia. This is a critical diagnostic sign alongside extreme hypertension, as the body tries to counteract the sudden, dangerous rise in systemic blood pressure.
Choice B rationale
Hyperkalemia refers to serum potassium levels exceeding the normal range of 3.5 to 5.0 mEq/L. While various metabolic stressors can shift potassium balance, it is not a primary or expected manifestation of autonomic dysreflexia. The pathophysiology of this condition is rooted in autonomic nervous system dysfunction rather than immediate electrolyte shifts. Potassium levels are generally influenced by renal function or cellular damage, which are not the acute drivers in this specific hypertensive crisis.
Choice C rationale
Hypotension is the opposite of what occurs during autonomic dysreflexia. In this condition, uninhibited sympathetic activity causes severe systemic vasoconstriction below the level of the spinal cord injury. This leads to sudden and life-threatening hypertension, often with systolic readings exceeding 200 mmHg. Normal adult blood pressure is typically less than 120/80 mmHg. Therefore, observing low blood pressure would suggest a different clinical issue, such as neurogenic shock, rather than an episode of dysreflexia.
Choice D rationale
While a patient experiencing extreme hypertension might feel chest discomfort, chest pain is not the classic, defining manifestation of autonomic dysreflexia. The hallmark signs include a pounding headache, profuse sweating above the injury level, and nasal congestion. While myocardial oxygen demand increases during the hypertensive spike, clinical focus remains on the primary neurological and cardiovascular reflex responses. Chest pain is more traditionally associated with primary cardiac events or pulmonary emboli rather than spinal cord triggers.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.